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  • Publications by Title | JILA-PFC
    M Daley A J Boyd M M Ye J Zoller P Lukin M D Alkaline Earth Metal Atoms as Few Qubit Quantum Registers Physical Review Letters 102 2009 DOI All optical retrieval of the global phase for two dimensional Fourier transform spectroscopy Journal Article 2008 Bristow A D Karaiskaj D Dai X Cundiff S T All optical retrieval of the global phase for two dimensional Fourier transform spectroscopy Optics Express 16 18017 2008 DOI Amplification and squeezing of quantum noise with a tunable Josephson metamaterial Journal Article 2008 Castellanos Beltran M A Irwin K D Hilton G C Vale L R Lehnert K W Amplification and squeezing of quantum noise with a tunable Josephson metamaterial Nature Physics 4 929 931 2008 DOI An atomic Fermi gas near a p wave Feshbach resonance Conference Paper 2007 Jin D S Gaebler J P Stewart J T An atomic Fermi gas near a p wave Feshbach resonance XVIII International Conference on Laser Spectroscopy 2007 DOI An optical lattice clock with accuracy and stability at the 10 18 level Journal Article 2014 Bloom B J Nicholson T L Williams J R Campbell S L Bishof M N Zhang X Zhang W Bromley S L Ye J An optical lattice clock with accuracy and stability at the 10 18 level Nature 506 71 75 2014 DOI URL An RNA folding motif GNRA tetraloop receptor interactions Journal Article 2013 Fiore J L Nesbitt D J An RNA folding motif GNRA tetraloop receptor interactions Quarterly Reviews of Biophysics 46 223 264 2013 DOI URL Analysis of a free oscillation atom interferometer Journal Article 2011 Kafle R Anderson D Z Zozulya A A Analysis of a free oscillation atom interferometer Physical Review A 84 033639 2011 DOI Analysis of Red Fluorescent Proteins Provides Insight into Dark State Conversion and Photodegradation Journal Article 2011 Dean K M Lubbeck J L Binder J K Schwall L R Jimenez R Palmer A E Analysis of Red Fluorescent Proteins Provides Insight into Dark State Conversion and Photodegradation Biophysical Journal 101 961 969 2011 DOI URL Analyzing Feshbach resonances A 6Li 133 Cs case study Journal Article 2014 Pires R Repp M Ulmanis J Kuhnle E D Weidemüller M Tiecke T G Greene C H Ruzic B P Bohn J L Tiemann E Analyzing Feshbach resonances A 6Li 133 Cs case study Physical Review A 90 2014 DOI URL Angle resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two dimensional imaging electron analyzer Journal Article 2007 Mathias S Miaja Avila L Murnane M M Kapteyn H C Aeschlimann M Bauer M Angle resolved photoemission spectroscopy with a femtosecond high harmonic light source using a two dimensional imaging electron analyzer Review of Scientific Instruments 78 083105 2007 DOI Ångström Precision Optical Traps and Applications Journal Article 2014 Perkins T T Ångström Precision Optical Traps and Applications Annual Review of Biophysics 43 279 302 2014 DOI URL Angular collapse of dipolar Bose Einstein condensates Journal Article 2009 Wilson R M Ronen S Bohn J L Angular collapse of dipolar Bose Einstein condensates Physical Review A 80 2009 DOI Anion Effects in the Scattering of CO2 from the Room Temperature Ionic Liquids bmim BF4 and bmim Tf2N Insights from Quantum Mechanics Molecular Mechanics Trajectories Journal Article 2012 Li X Schatz G C Nesbitt D J Anion Effects in the Scattering of CO2 from the Room Temperature Ionic Liquids bmim BF4 and bmim Tf2N Insights from Quantum Mechanics Molecular Mechanics Trajectories The Journal of Physical Chemistry B 116 3587 3602 2012 DOI URL Anisotropic Polarizability of Ultracold Polar 40K87Rb Molecules Journal Article 2012 Neyenhuis B Yan B Moses S A Covey J P Chotia A Petrov A N Kotochigova S Ye J Jin D S Anisotropic Polarizability of Ultracold Polar 40K87Rb Molecules Physical Review Letters 109 230403 2012 DOI URL Anisotropic Relaxation Dynamics in a Dipolar Fermi Gas Driven Out of Equilibrium Journal Article 2014 Aikawa K Frisch A Mark M Baier S Grimm R Bohn J L Jin D S Bruun G M Ferlaino F Anisotropic Relaxation Dynamics in a Dipolar Fermi Gas Driven Out of Equilibrium Physical Review Letters 113 2014 DOI URL Anisotropic Superfluidity in a Dipolar Bose Gas Journal Article 2011 Ticknor C C Wilson R M Bohn J L Anisotropic Superfluidity in a Dipolar Bose Gas Physical Review Letters 106 065301 2011 DOI Annual Review of Cold Atoms and Molecules Volume 1 Book 2013 Madison K W Wang Y Rey A M Bongs K Annual Review of Cold Atoms and Molecules Volume 1 World Scientific 2013 URL Anomalously Strong Electric Near Field Enhancements at Defect Sites on Au Nanoshells Observed by Ultrafast Scanning Photoemission Imaging Microscopy Journal Article 2013 Grubisic A Mukherjee S Halas N Nesbitt D J Anomalously Strong Electric Near Field Enhancements at Defect Sites on Au Nanoshells Observed by Ultrafast Scanning Photoemission Imaging Microscopy The Journal of Physical Chemistry C 117 22545 22559 2013 DOI URL Aromatic Molecules in Anion Recognition Electrostatics versus H Bonding Journal Article 2007 Schneider H C Vogelhuber K M Schinle F Weber J M Aromatic Molecules in Anion Recognition Electrostatics versus H Bonding Journal of the American Chemical Society 129 13022 13026 2007 DOI Atom optics on a chip Conference Paper 2003 Anderson D Z Bright V M Czaia L Du S Frader Thompson S McCarthy B Squires M B Atom optics on a chip The Sixteenth Annual International Conference on Micro Electro Mechanical Systems MEMS 03 Kyoto IEEE IEEE Kyoto Japan 2003 URL Atom chip Bose Einstein condensation in a portable vacuum cell Journal Article 2004 Du S Squires M B Imai Y Czaia L Saravanan R A Bright V M Reichel J Hänsch T W Anderson D Z Atom chip Bose Einstein condensation in a portable vacuum cell Phys Rev A 70 2004 DOI Atom molecule laser fed by stimulated three body recombination Journal Article 2003 Borca B Dunn J W Kokoouline V Greene C H Atom molecule laser fed by stimulated three body recombination Physical Review Letters

    Original URL path: http://jila-pfc.colorado.edu/publications/publications-title (2016-04-29)
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  • Investigators | JILA-PFC
    euverc colostate edu and co founder of a successful laser company www kmlabs com Website http jila colorado edu kmgroup Email kapteyn jila colorado edu Phone 303 492 8198 office Konrad Lehnert My research interests include quantum coherence in nanoscale electrical circuits solid state qubits dynamics of individual electrons in one dimensional conductors and ultrafast quantum limited charge measurements Recent advances in nanolithography and cryogenic electronics have made it possible to sense individual electrons as they move through nanometer sized conductors My research exploits this ability to detect the quantum superposition of macroscopically distinct states of electrical circuits and to detect the flow of single electrons through molecular wires My current work addresses the following questions What are the sources of decoherence in solid state qubits How efficiently and how quickly do electrons screen each other in nanoscale circuits Can a sensor of charge reach quantum limited sensitivity Website http jila colorado edu lehnert Email konrad lehnert jila colorado edu Phone 303 492 8348 office Heather Lewandowski My group studies collisions and reactions of simple cold molecules Our ultimate goal is to understand the quantum mechanical processes involved in making and breaking a chemical bond We aim to control the reacting molecules external and internal degrees of freedom in the quantum regime To accomplish this control we slow down a supersonically cooled molecular beam using time varying inhomogeneous electric fields Stark deceleration The cold 100 mK molecules are then loaded into an electrostatic trap to allow for interactions to be studied for several seconds Website http jila colorado edu lewandowski Email lewandoh jilau1 colorado edu Phone 303 492 1446 office W Carl Lineberger My research centers around the interaction of radiation with ions I use tunable laser photodetachment to probe electron correlation and to investigate dipole bound states of negative ions I use negative ion photoelectron spectroscopy to determine electron affinities and structures of radicals and metal clusters I study the transition from gas phase to condensed phase by means of photodissociation and photodetachment of cold cluster ions by using nanosecond and picosecond lasers I study ultrafast molecular rearrangement dynamics using pump probe and photodetachment photoionization of negative ions Website http jila colorado edu lineberger Email wcl jila colorado edu Phone 303 492 7834 office Margaret Murnane Nonlinear optics has revolutionized laser science by making it possible to efficiently convert laser light from one wavelength into another My research exploits the extreme nonlinear optical process of high harmonic generation whereby light from an ultrafast laser can be coherently upshifted resulting in a tabletop laserlike coherent light source in the soft x ray region The x ray bursts generated during high harmonic generation represent the fastest strobe light in existence fast enough to capture electron dynamics in atoms molecules and materials Exciting applications of attosecond science and technology include capturing and controlling the coupled motions of electrons and atoms in molecules high resolution imaging nanoscale heat transport and ultrafast element specific dynamics in magnetic materials Website http jila colorado edu kmgroup Email murnane jila colorado edu Phone 303 492 7839 office David J Nesbitt My research includes quantum state resolved laser spectroscopy and dynamics of van der Waals and hydrogen bonded clusters time resolved kinetics of atmospheric radicals crossed beam studies of state to state inelastic and reactive dynamics high resolution laser spectroscopy of jet cooled radicals and molecular ions nonlinear frequency generation of narrowband tunable infrared laser sources vibrationally mediated photochemistry in size quantum state selected clusters alignment phenomena collision dynamics of gases with thin films and development of atomic force scanning tunneling methods for near field scanning optical microscopy NSOM of molecules on surfaces Website http jila colorado edu nesbitt Email djn jila colorado edu Phone 303 492 8857 office Thomas Perkins The biochemical cycle of mechanoenzymes generates a force and a displacement that can be measured at the single molecule level The outstanding question is how motor proteins transduce chemical energy into physical motion To answer this question we use optical tweezers a focused laser beam that can manipulate micron sized beads in solution allowing measurement of position and force in the nanometer nm and piconewton pN ranges respectively Our research focuses on developing assays and precision instrumentation to measure the properties of single DNA based molecular motors Typically enzymatic motion along the DNA is measured by anchoring the enzyme to a surface and monitoring the position of an optically trapped bead attached to the DNA s distal end Website http jila colorado edu perkins Email tperkins jila colorado edu Phone 303 492 5291 office Cindy Regal My main research interest is quantum systems of interacting atoms photons and phonons I seek to engineer and explore new quantum systems with controlled connections for quantum information and quantum optics In particular I focus on manipulating single and few ultracold neutral atoms and the quest to control mesoscopic mechanical oscillators in the quantum regime My experiments draw on for example low loss optical interfaces high Q mechanical oscillators and laser cooling and trapping techniques Website http jila colorado edu regal Email regal jila colorado edu Phone 303 492 5956 office Ana Maria Rey My main research interest is ultracold atoms and molecules loaded in optical lattices which are periodic trapping potentials created by illuminating the atoms and molecules with laser beams Atoms in optical lattices are analogous to electrons in solid state crystals Their big advantage is that these artificial crystals of light are perfectly clean and highly controllable Therefore they are ideal for exploring a whole range of fundamental phenomena that are extremely difficult or impossible to study in traditional condensed matter systems My goal is to study how to control and manipulate these systems to engineer different quantum phases such as superfluids insulators quantum magnets and topological matter I plan to use them for understanding the physics of strongly correlated bosonic and fermionic systems and nonequilibrium phenomena Additionally I am interested in studying how to generate and manipulate entanglement in quantum systems for use in quantum information processing

    Original URL path: http://jila-pfc.colorado.edu/investigators/investigators (2016-04-29)
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  • Education & Outreach | JILA-PFC
    Coherence and Transformation Exploring high impact synergistic research directions Research Highlights Publications Publications by Year Publications by Title Investigators Education Outreach Partnerships in Informal Science Education in the Community PISEC Education Research Community Outreach News Research Highlights Center News JILA PFC Search form Search Advanced Other JILA Sites JILA Home Education Outreach The JILA Physics Frontier Center pursues a number of education and outreach programs Please use the links below

    Original URL path: http://jila-pfc.colorado.edu/outreach/education-outreach (2016-04-29)
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  • Partnerships in Informal Science Education in the Community (PISEC) | JILA-PFC
    PISEC program funded by the National Science Foundation The program recruits faculty graduate students undergraduate students and research associates to work on inquiry based science activities with children in grades K 8 During the semester PISEC meets weekly at 4 6 schools and community centers in Boulder County The PISEC program works with partner organizations in the community to reach children from underrepresented groups in physics including low income and ethnic minority students Many of these children have never personally known a scientist or been to a college campus before their experiences in PISEC Our activities encourage students to explore the physics in everyday life to reason scientifically and to formulate new ideas We have developed four semesters of curricula 1 electricity circuits and magnetism 2 forces and motion 3 waves heat and fluids and 4 light color and optics University students and children work in small groups on hands on experiments as well as interactive web based computer simulations During PISEC sessions students communicate what they learn by making live action and stop action movies and by keeping lab notebooks At the end of each semester students take a field trip to JILA where they take lab tours show their movies and enjoy making and eating liquid nitrogen ice cream Evaluation and research are important for understanding the impact of our outreach efforts in PISEC We have shown that PISEC participation positively affects the attitudes of children towards science 1 promotes children s scientific reasoning and agency 2 3 as well as increases the public communication skills of university participants 4 5 1 Wulf R Mayhew L M Finkelstein N D Impact of Informal Science Education on Children s Attitudes About Science Physics Education Research Conference AIP Proc 2010 2 Wulf R Hinko K Finkelstein N D Comparing Mechanistic

    Original URL path: http://jila-pfc.colorado.edu/outreach/pisec (2016-04-29)
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  • Education Research | JILA-PFC
    well as how their ideas change as they receive formal instruction The group also develops the widely used interactive web based PhET simulations PER CU staff worked with the PISEC program director to integrate PhET simulations into the program s after school science lessons on motion and circuits As a result the Moving Man Maze Game Signal Circuit and Circuit Construction Kit simulations run on 10 Mac laptop computers are now part of the inquiry based informal science programs for students in grades 5 through 12 in the St Vrain School District The PISEC program also works to implement research based teaching practices into its after school science classes At the end of each semester the program director and her colleagues assess the changes in students attitudes and beliefs about science as well as their progress in content mastery Content mastery is evaluated with surveys of student performance on the Conceptual Survey of Circuits which is given before and after a semester of science lessons at each school or community center Attitudes and beliefs about science are assessed with the Children s Attitudes Survey The survey was adapted for elementary and middle school students from the Colorado Learning Attitudes about

    Original URL path: http://jila-pfc.colorado.edu/outreach/education-research (2016-04-29)
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  • Community Outreach | JILA-PFC
    Highlights Center News JILA PFC Search form Search Advanced Other JILA Sites JILA Home Community Outreach Community outreach is an integral part of the JILA Center for AMO physics Center investigators participate in science presentations for students and the community at the University of Colorado Boulder and a science display at a local mall Science Presentations at the University of Colorado Boulder Nine JILA Physics Frontier Center investigators present Saturday morning Wizard s shows for elementary school children and their parents at the University of Colorado Boulder UCB David Nesbitt of the AMO Physics Center directs the Wizards program Some of the offerings include The Chemistry of Cooking with David Nesbitt From Big to Very Small Microscopy the Powers of Ten with Tom Perkins Waves and Radios The Physics of the Information Age with Konrad Lehnert Recent Wizards shows have also featured At the End of the Rainbow with Henry Kapteyn and Margaret Murnane The Physics of Sports with John Bohn and Debbie Jin Sink or Swim with Mathias Weber Speed with Eric Cornell Five center scientists offer Science Saturday talks for high school students at the University of Colorado at Boulder Some of the talks have included Strings Drums

    Original URL path: http://jila-pfc.colorado.edu/outreach/community-outreach (2016-04-29)
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  • Center News | JILA-PFC
    D and Catherine T MacArthur Fellowship a k a genius grant the APS Maria Goeppert Mayer Award the Service to America Medal Science the APS I I Rabi Award the Benjamin Franklin Medal in Physics Sigma Xi s William Proctor Prize for Scientific Achievement a Department of Commerce Gold Medal the L Oreal UNESCO Women in Science Award for North America and the National Academy of Sciences Comstock Prize Margaret Murnane Awarded Honorary Doctorate from Trinity College Dublin Published 07 06 2015 Margaret Murnane was awarded an Honorary Doctorate from Trinity College Dublin on June 26 2015 The entire ceremony was conducted in Latin and included a lively presentation of Murnane s accomplishments in laser science It began Lucida diei patefacere res omnes quae oculis videantur or We see and understand the world through light the words spoken by Murnane to open her lecture at the American Physical Society in March 2015 The Trinity College presentation went on to cite her ground breaking work in laser science that has transformed the field of ultrafast laser and x ray science She has not only engaged in fundamental research but also used her discoveries to found a start up company KMLabs with her collaborator and husband Henry Kapteyn Murnane has published more than 200 scientific papers and given more than 300 presentations worldwide She has been able to capture the movements of the smallest particles in nature including the dance of electrons in atoms and molecules She has engineered coherent x ray beams that can distinguish important biomolecules Her accomplishments are expected to have applications ranging from entertainment to surgery and new pharmaceuticals Murnane was born in County Limerick Ireland and fell in love with science when she was 8 years old Her passion for discovery took her first to University College Cork then to the University of California at Berkeley for graduate work and then to academic positions at Washington State University the University of Michigan and finally to the University of Colorado Boulder where she is Distinguished Professor of Physics and Fellow of JILA Murnane has received 30 awards and honors for her accomplishments including the 2011 Boyle Medal of the Royal Dublin Society She is an enthusiastic supporter of the Trinity School of Physics but more than anything else she is a shining model for women in science the presentation concluded Margaret Murnane awarded University College Dublin Honorary Degree Published 06 25 2015 University College Dublin conferred an honorary degree of Doctor of Science on Margaret Murnane June 16 2015 at a ceremony on the campus in Dublin Ireland This award the highest awarded by the university is given to remarkable individuals who have achieved distinction in their fields of endeavour It is given on Bloomsday in honor of UCD alum James Joyce NSF highlights the Ye Lab s development of laser frequency comb applications Published 06 23 2015 A National Science Foundation Discovery feature highlights the work of the Ye Lab in their dramatic development of laser frequency comb applications that have according to the article transformed basic scientific research and led to new technologies in so many different fields timekeeping medical research communications remote sensing astronomy just to name a few Learn more about this research by reading the article Combing frequencies NSF funded center provides spectrum of new research technology Ana Maria Rey Awarded APS Fellowship Published 03 30 2015 Ana Maria Rey has been awarded an APS Fellowship by the American Physical Society The award cited her pioneering research on developing fundamental understanding and control of novel quantum systems and finding applications for a wide range of scientific fields including quantum metrology and the emerging interface between Atomic Molecular and Optical physics condensed matter and quantum information science Rey will receive her APS Fellowship at the 46 th Annual Division of Atomic Molecular and Optical Physics DAMOP Meeting in Columbus Ohio held June 8 12 2015 Carl Lineberger Wins NAS Award in Chemical Sciences Published 01 22 2015 Carl Lineberger has won the 2015 National Academy of Sciences Award in Chemical Sciences The award was given for his development of molecular negative ion photoelectron spectroscopy and the fundamental insights into molecular electron affinities and intramolecular dynamics derived therefrom Lineberger is the E U Condon Distinguished Professor of Chemistry and Biochemistry at the University of Colorado Boulder and a Fellow of JILA The award is presented with a medal and a 15 000 cash prize Lineberger developed negative ion photoelectron spectroscopy Scientists can use this technique to determine the electron affinity of the neutral version of an atom or molecule Electron affinity the change in energy that occurs when an electron is added to an atom or molecule provides important information about atoms and molecules and how they interact in chemical reactions The periodic table of atomic electronic affinities now included in general chemistry textbooks is founded on Lineberger s early work with negative ion photoelectron spectroscopy His development of anion photoelectron spectroscopy as a tool to study small molecules has provided both an important method to characterize highly reactive short lived species known as free radicals as well as a new direct way to observe the structure and evolution of molecules in the process of undergoing a chemical reaction Lineberger s experimental methods are now in widespread use in laboratories worldwide The NAS Award in Chemical Sciences was first awarded in 1979 to Linus Pauling for his studies which elucidated in structural terms the properties of stable molecules of progressively higher significance to the chemical geological and biological sciences The NAS Award in Chemical Sciences award has continued to recognize some of the greatest chemists in the past few decade as 14 recipients have been honored with a National Medal of Science and six recipients have received a Nobel Prize in Chemistry Taube 1983 Hoffmann 1981 Brown 1979 Cram 1987 Zewail 1999 Sharpless 2001 The NAS Award in Chemical Sciences is presented annually to honor innovative research in the chemical sciences that contributes to a

    Original URL path: http://jila-pfc.colorado.edu/news/center-news (2016-04-29)
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  • Quantum Baseball | JILA-PFC
    escape the quantum baseball game altogether and land on detectors in the laboratory The rate at which these balls are detected provides information about the state of the players This kind of communication between atoms and photons in three dimensional 3D quantum matter is going to have important application to a variety of quantum systems including optical atomic clocks Players communicate with each other by exchanging balls said Ye Depending on the incidence of the balls with respect to a particular player lineup all the players can start to act together and throw their balls in the same direction And Rey says there is almost never just a single pass before a ball escapes Rather a ball is passed many times between the players This process coordinates the movements of the players and provides information about their states Plus the closer players are to each other the faster the balls get thrown between them The fast pace of the quantum baseball game enhances the probability that balls escape Quantum baseball is essentially a novel form of interatomic communication in which photons simultaneously carry forces that influence the atomic responses and information about those atomic responses All of this action is transmitted throughout a cloud of hundreds or thousands of atoms Usually atoms talk to each other by knocking into each other in other words via collisions said Ye But a simple calculation shows that communication via collisions was not what we were observing with spectroscopy in our lab The Ye group s observation remained a mystery until French scientist Robin Kaiser visited JILA and championed the idea that collective communication in an atom cloud could result from the sharing of photons Soon theorists Ana Maria Rey graduate student Bihui Zhu and colleagues from Harvard discovered that the collective atom photon

    Original URL path: http://jila-pfc.colorado.edu/highlights/quantum-baseball (2016-04-29)
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