Now showing items 1-20 of 22

    • Asymptotic normalization coefficients for 14N+p -> O-15 and the astrophysical S factor for N-14(p, gamma)O-15 

      Mukhamedzhanov, AM; Bem, P.; Brown, BA; Burjan, V.; Gagliardi, Carl A.; Kroha, V.; Novak, J.; Nunes, FM; Paskor, S.; Pirlepesov, F.; Simeckova, E.; Tribble, Robert E.; Vincour, J. (American Physical Society, 2003)
      The N-14(p,gamma)O-15 reaction, which controls energy production in the CNO cycle, has contributions from both resonance and direct captures to the ground and excited states. The overall normalization of the direct captures ...
    • Charmonium in medium: From correlators to experiment 

      Zhao, Xingbo; Rapp, Ralf. (American Physical Society, 2010)
      We set up a framework in which in-medium charmonium properties are constrained by thermal lattice quantum chromodynamics and subsequently implemented into a thermal rate equation enabling the comparison with experimental ...
    • Coherent instabilities in a semiconductor laser with fast gain recovery 

      Wang, Christine Y.; Diehl, L.; Gordon, A.; Jirauschek, C.; Kartner, F. X.; Belyanin, Alexey; Bour, D.; Corzine, S.; Hofler, G.; Troccoli, M.; Faist, J.; Capasso, Federico (American Physical Society, 2007)
      We report the observation of a coherent multimode instability in quantum cascade lasers (QCLs), which is driven by the same fundamental mechanism of Rabi oscillations as the elusive Risken-Nummedal-Graham-Haken (RNGH) ...
    • Continuum spectroscopy with a (10)C beam: Cluster structure and three-body decay 

      Charity, R. J.; Wiser, T. D.; Mercurio, K.; Shane, R.; Sobotka, L. G.; Wuosmaa, A. H.; Banu, A.; Trache, L.; Tribble, Robert E. (American Physical Society, 2009)
      Resonance-decay spectroscopy is used to study particle-unbound excited states produced in interactions of E/A=10.7 MeV (10)C on Be and C targets. After inelastic scattering, structures associated with excited states in ...
    • Correlation of photon pairs from the double Raman amplifier: Generalized analytical quantum Langevin theory 

      Ooi, C. H. Raymond; Scully, Marlan O.; Sun, Qingqing; Zubairy, M. Suhail (American Physical Society, 2007)
      We present a largely analytical theory for two-photon correlations G((2)) between Stokes (s) and anti-Stokes (a) photon pairs from an extended medium (amplifier) composed of double-Lambda atoms in counterpropagating geometry. ...
    • Disentanglement in a two-qubit system subjected to dissipation environments RID A-4660-2010 

      Ikram, Manzoor; Li, Fu-li; Zubairy, M. Suhail (American Physical Society, 2007)
      We investigate the time evolution of entanglement of various entangled states of a two-qubit system exposed to either thermal or squeezed reservoirs. We show that, except for the vacuum reservoir, the sudden-death of ...
    • Disorder and interactions in quantum Hall ferromagnets near nu=1. 

      Sinova, Jairo; MacDonald, AH; Girvin, SM. (American Physical Society, 2000)
    • Entangled radiation via a Raman-driven quantum-beat laser 

      Qamar, Sajid; Al-Amri, M.; Qamar, Shahid; Zubairy, M. Suhail (American Physical Society, 2009)
      We propose a scheme for the entanglement generation of two cavity modes using a four-level Raman-driven quantum-beat laser (QBL). The atomic coherence is generated by a Raman-type two-photon process. Two different sufficient ...
    • Entanglement criteria and nonlocality for multimode continuous-variable systems RID B-8901-2008 

      Sun, Qingqing; Nha, Hyunchul; Zubairy, M. Suhail (American Physical Society, 2009)
      We demonstrate how to efficiently derive a broad class of inequalities for entanglement detection in multimode continuous variable systems. The separability conditions are established from partial transposition (PT) in ...
    • Influence of pump-phase fluctuations on entanglement generation using a correlated spontaneous-emission laser 

      Qamar, Shahid; Xiong, Han; Zubairy, M. Suhail (American Physical Society, 2007)
      In this paper, we study the effect of phase fluctuations of the pump field upon the entanglement generation in a two-photon correlated emission laser (CEL). We consider initial vacuum and coherent state for the two-cavity ...
    • Isoscalar giant dipole resonance in Zr-90, Sn-116, and Pb-208 

      Clark, HL; Lui, YW; Youngblood, David H. (American Physical Society, 2001)
      Strength functions for isoscalar dipole excitations in Zr-90, Sn-116, and Pb-208 have been measured with inelastic scattering of 240 MeV alpha particles at small angles. The isoscalar E1 strength distribution in each nucleus ...
    • Isoscalar giant resonances in (48)Ca 

      Lui, Y. -W; Youngblood, David H.; Shlomo, S.; Chen, X.; Tokimoto, Y.; Krishichayan; Anders, M.; Button, J. (American Physical Society, 2011)
      The giant resonance region from 9.5 MeV < E(x) < 40 MeV in (48)Ca has been studied with inelastic scattering of 240-MeV alpha particles at small angles, including 0 degrees. 95(-15)(+11)% of E0 energy-weighted sum rule ...
    • Mn-doped Ga(As,P) and (Al,Ga)As ferromagnetic semiconductors: Electronic structure calculations 

      Masek, J.; Kudrnovsky, J.; Maca, F.; Sinova, Jairo; MacDonald, A. H.; Campion, R. P.; Gallagher, B. L.; Jungwirth, T. (American Physical Society, 2007)
      A remarkable progress towards functional ferromagnetic semiconductor materials for spintronics has been achieved in p-type (Ga,Mn)As. Robust hole-mediated ferromagnetism has, however, been observed also in other III-V hosts ...
    • New astrophysical S factor for the (15)N(p,gamma)(16)O reaction via the asymptotic normalization coefficient (ANC) method 

      Mukhamedzhanov, A. M.; Bem, P.; Burjan, V.; Gagliardi, Carl A.; Goldberg, V. Z.; Hons, Z.; La Cognata, M.; Kroha, V.; Mrazek, J.; Novak, J.; Piskor, S.; Pizzone, R. G.; Plunkett, A.; Romano, S.; Simeckova, E.; Spitaleri, C.; Trache, L.; Tribble, Robert E.; Vesely, F.; Vincour, J. (American Physical Society, 2008)
      The (15)N(p,gamma)(16)O reaction provides a path from the CN cycle to the CNO bi-cycle and CNO tri-cycle. The measured astrophysical factor for this reaction is dominated by resonant capture through two strong J(pi) = 1(-) ...
    • One-atom correlated-emission laser RID C-6638-2008 

      Kim, Ho-Joon; Khosa, Ashfaq H.; Lee, Hai-Woong; Zubairy, M. Suhail (American Physical Society, 2008)
      We study a four-level double-Lambda atomic configuration working as a two photon linear amplifier where two atomic transitions independently interact with cavity mode, while the other transitions are driven by a strong ...
    • Origin of the zero-bias conductance peaks observed ubiquitously in high-T-c superconductors 

      Hu, Chia-Ren. (American Physical Society, 1998)
      The midgap surface states predicted previously to exist on non-{n0m} surfaces of d(xa2-xb2-) superconductors (SC's) can be extended to midgap interface states (MIS's), which exist at almost all interface between grains of ...
    • Pentaquark Theta(+) production from the reaction gamma p ->pi K-+(-)Theta(+) 

      Liu, W.; Ko, Che Ming; Kubarovsky, V. (American Physical Society, 2004)
      The cross section for theta(+) production from the reaction gammap-->pi(+)K(-)theta(+), which was observed in the CLAS experiment at the Jefferson National Laboratory, is evaluated in a hadronic model that includes couplings ...
    • Photoproduction of pentaquark cascades from nucleons 

      Liu, W.; Ko, Che Ming. (American Physical Society, 2004)
      The cross sections for production of the pentaquark baryon Xi(5)(+) from the reaction gammap-->K(0)K(0)Xi(5)(+) and of Xi(5)(--) from the reaction gamman-->K(+)K(+)Xi(5)(--) are evaluated in a hadronic model that includes ...
    • Quantum electrical dipole in triangular systems: A model for spontaneous polarity in metal clusters 

      Allen, P. B.; Abanov, Artem G.; Requist, R. (American Physical Society, 2005)
    • Reduced effect of impurities on the universal pairing scale in the cuprates 

      Vorontsov, A. B.; Abanov, Artem; Vavilov, M. G.; Chubukov, A. V. (American Physical Society, 2010)
      We consider the effect of nonmagnetic impurities on the onset temperature T* for the d-wave pairing in spin-fluctuation scenario for the cuprates. We analyze intermediate coupling regime when the magnetic correlation length ...