Now showing items 279-298 of 441

  • Pairing and Phase Separation in a Polarized Fermi Gas 

    Partridge, Guthrie B.; Li, Wenhui; Kamar, Ramsey I.; Liao, Yean-an; Hulet, Randall G. (2006)
    We report the observation of pairing in a gas of atomic fermions with unequal numbers of two components. Beyond a critical polarization, the gas separates into a phase that is consistent with a superfluid paired core ...
  • Performance of the CMS missing transverse momentum reconstruction in pp data at √s = 8 TeV 

    CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2015)
    The performance of missing transverse energy reconstruction algorithms is presented using √s=8 TeV proton-proton (pp) data collected with the CMS detector. Events with anomalous missing transverse energy are studied, and ...
  • Permanent magnet trap for cold atoms 

    Tollett, J.J.; Bradley, C.C.; Sackett, C.A.; Hulet, R.G. (1995)
    We report the trapping of neutral atoms in a permanent magnet trap. Approximately 1×10˄8 ground-state lithium atoms have been confined in a nonzero magnetic-field minimum produced by six permanent magnets in an Ioffe ...
  • Petawatt laser absorption bounded 

    Levy, Matthew C.; Wilks, Scott C.; Tabak, Max; Libby, Stephen B.; Baring, Matthew G. (2014)
    The interaction of petawatt (1015W) lasers with solid matter forms the basis for advanced scientific applications such as table-top particle accelerators, ultrafast imaging systems and laser fusion. Key metrics for these ...
  • Phase coherence and superfluid-insulator transition in a disordered Bose-Einstein condensate 

    Chen, Yong P.; Hitchcock, J.; Dries, D.; Junker, M.; Welford, C.; Hulet, R.G. (2008)
    We have studied the effects of a disordered optical potential on the transport and phase coherence of a Bose-Einstein condensate (BEC) of L7i atoms. At moderate disorder strengths (VD), we observe inhibited transport and ...
  • Photoabsorption by Ultracold Atoms and the Scattering Length 

    Côté, R.; Dalgarno, A.; Sun, Y.; Hulet, R.G. (1995)
    It is shown that photoabsorption in a gas of ultracold atoms depends on the sign and magnitude of the scattering length in the scattering of a pair of atoms. Measurements of fluorescence in 7Li are interpreted to show that ...
  • Photoassociation of a Bose-Einstein Condensate near a Feshbach Resonance 

    Junker, M.; Dries, D.; Welford, C.; Hitchcock, J.; Chen, Y.P.; Hulet, R.G. (2008)
    We measure the effect of a magnetic Feshbach resonance (FR) on the rate and light-induced frequency shift of a photoassociation resonance in ultracold Li7. The photoassociation-induced loss-rate coefficient Kp depends ...
  • Photoassociative frequency shift in a quantum degenerate gas 

    Gerton, Jordan M.; Frew, Brian J.; Hulet, Randall G. (2001)
    A light-induced frequency shift is observed in single-photon photoassociative spectra of magnetically trapped, quantum degenerate 7Li. The shift is a manifestation of the coupling between the threshold continuum scattering ...
  • Photoassociative Spectroscopy at Long Range in Ultracold Strontium 

    Nagel, S.B.; Mickelson, P.G.; Saenz, A.D.; Martinez, Y.N.; Chen, Y.C.; Killian, T.C.; Pellegrini, P.; Cote, R. (2005-03-03)
  • Physical model of the immune response of bacteria against bacteriophage through the adaptive CRISPR-Cas immune system 

    Han, Pu; Niestemski, Liang Ren; Barrick, Jeffrey E.; Deem, Michael W. (2013)
    Bacteria and archaea have evolved an adaptive, heritable immune system that recognizes and protects against viruses or plasmids. This system, known as the CRISPR-Cas system, allows the host to recognize and incorporate ...
  • The physics of bacterial decision making 

    Ben-Jacob, Eshel; Lu, Mingyang; Schultz, Daniel; Onuchic, José N. (2014)
    The choice that bacteria make between sporulation and competence when subjected to stress provides a prototypical example of collective cell fate determination that is stochastic on the individual cell level, yet predictable ...
  • Pierced Lasso Bundles Are a New Class of Knot-like Motifs 

    Haglund, Ellinor; Sulkowska, Joanna I.; Noel, Jeffrey K.; Lammert, Heiko; Onuchic, José N.; Jennings, Patricia A. (2014)
    A four-helix bundle is a well-characterized motif often used as a target for designed pharmaceutical therapeutics and nutritional supplements. Recently, we discovered a new structural complexity within this motif created ...
  • Plasmonic Nanobubbles Rapidly Detect and Destroy Drug-Resistant Tumors 

    Lukianova-Hleb, Ekaterina Y.; Ren, Xiaoyang; Townley, Debra; Wu, Xiangwei; Kupferman, Michael E. (2012)
    The resistance of residual cancer cells after oncological resection to adjuvant chemoradiotherapies results in both high recurrence rates and high non-specific tissue toxicity, thus preventing the successful treatment of ...
  • Precise atomic radiative lifetime via photoassociative spectroscopy of ultracold lithium 

    McAlexander, W.I.; Abraham, E.R.I.; Ritchie, N.W.M.; Williams, C.J.; Stoof, H.T.C.; Hulet, R.G. (1995)
    We have obtained spectra of the high-lying vibrational levels of the 13Σ+g state of Li26 via photoassociation of ultracold Li6 atoms confined in a magneto-optical trap. The 13Σ+g state of the diatomic molecule correlates ...
  • Precise test of quantum jump theory 

    Hulet, Randall G.; Wineland, D.J.; Bergquist, J.C.; Itano, Wayne M. (1988)
    Quantum jumps due solely to spontaneous Raman scattering between the Zeeman sublevels of a single Mg+24 ion have been observed in the fluorescence emitted by the ion. A theory of quantum jumps for this system predicts that ...
  • Prediction of heart rate response to conclusion of spontaneous breathing trial by fluctuation dissipation theory 

    Chen, Man; Niestemski, Liang Ren; Prevost, Robert; McRae, Michael; Cholleti, Sharath; Najarro, Gabriel; Buchman, Timothy G.; Deem, Michael W. (2013-02)
    The non-equilibrium fluctuation dissipation theorem is applied to predict how critically ill patients respond to treatment, based upon data currently collected by standard hospital monitoring devices. This framework is ...
  • Prediction of heart rate response to conclusion of the spontaneous breathing trial by fluctuation dissipation theory 

    Chen, Man; Niestemski, Liang Ren; Prevost, Robert; McRae, Michael; Cholleti, Sharath; Najarro, Gabriel; Buchman, Timothy G.; Deem, Michael W. (2013)
    The non-equilibrium fluctuation dissipation theorem is applied to predict how critically ill patients respond to treatment, based upon data currently collected by standard hospital monitoring devices. This framework is ...
  • Preferential Location of Germanium in the UTL and IPC-2a Zeolites 

    Odoh, Samuel O.; Deem, Michael W.; Gagliardi, Laura (2014-10-28)
    The preferential location of Ge in the double four-membered rings (D4R) of zeolite UTL has been examined with periodic density functional theory calculations. In silicate UTL, Ge atoms are preferentially sited at the T1 ...
  • Probing color coherence effects in pp collisions at √s = 7TeV 

    CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2014)
    A study of color coherence effects in pp collisions at a center-of-mass energy of 7 TeV is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated ...
  • Probing color coherence effects in pp collisions at √s =7TeV 

    CMS Collaboration; Adair, A.; Akgun, B.; Ecklund, K.M.; Geurts, F.J.M.; Li, W.; Michlin, B.; Padley, B.P.; Redjimi, R.; Roberts, J.; Zabel, J. (2014)
    A study of color coherence effects in pp collisions at a center-of-mass energy of 7 TeV is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated ...