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6 papers · 1 filter
Conductance oscillation and quantization in monoatomic Al wires
Ying Xu, Xingqiang Shi, Zhi Zeng +2
We present first-principles calculations for the transport properties of monoatomic Al wires sandwiched between Al(100) electrodes. The conductance of the monoatomic Al wires oscil…
Many-body quantum ratchet in a Bose-Einstein condensate
Dario Poletti, Giuliano Benenti, Giulio Casati +1
We study the dynamics of a dilute Bose-Einstein condensate confined in a toroidal trap and exposed to a pair of periodically flashed optical lattices. We first prove that in the no…
Local and nonlocal entanglement for quasiparticle pairs induced by Andreev reflection
Zhao Yang Zeng, Liling Zhou, Jongbae Hong +1
We investigate local and nonlocal entanglement of particle pairs induced by direct and crossed Andreev reflections at the interfaces between a superconductor and two normal conduct…
Effective phonons in anharmonic lattices: anomalous vs normal heat conduction
Nianbei Li, Peiqing Tong, Baowen Li
We study heat conduction in one dimensional (1D) anharmonic lattices analytically and numerically by using an effective phonon theory. It is found that every effective phonon mode…
Quantum resonance and anti-resonance for a periodically kicked Bose-Einstein Condensate in a one dimensional Box
Dario Poletti, Libin Fu, Jie Liu +1
We investigate the quantum dynamics of a periodically kicked Bose-Einstein Condensate confined in a one dimensional (1D) Box both numerically and theoretically, emphasizing on the…
Size-dependent thermal conductivity of nanoscale semiconducting systems
L. -H Liang, Baowen Li
We study the size dependence of thermal conductivity in nanoscale semiconducting systems. An analytical formula including the surface scattering and the size confinement effects of…