288 citations · 846 across the 8 of their papers we have counts for
7 papers
Commutability between Semiclassical Limit and Adiabatic Limit
Biao Wu, Jie Liu
We study the semiclassical limit and the adiabatic limit with a second-quantized two-mode model, which describes a many-boson interacting system. When its mean-field interaction is…
Adiabatic Geometric Phase for a General Quantum States
Biao Wu, Jie Liu, Qian Niu
A geometric phase is found for a general quantum state that undergoes adiabatic evolution. For the case of eigenstates, it reduces to the original Berry's phase. Such a phase is ap…
Direct extraction of the Eliashberg function for electron-phonon coupling: A case study of Be(1010)
Junren Shi, S. -J Tang, Biao Wu +8
We propose a systematic procedure to directly extract the Eliashberg function for electron-phonon coupling from high-resolution angle-resolved photoemission data. The procedure is…
Superfluidity of Bose-Einstein Condensate in An Optical Lattice: Landau-Zener Tunneling and Dynamical Instability
Biao Wu, Qian Niu
Superflow of Bose-Einstein condensate in an optical lattice is represented by a Bloch wave, a plane wave with periodic modulation of the amplitude. We review the theoretical result…
Pendulum View of The Schroedinger Equation
Biao Wu
A transformation is found between the one dimensional Schroedinger equation and a pendulum problem. It is demonstrated how to construct exact solutions with the resulted pendulum e…
Surface Phase Transitions Induced by Electron Mediated Adatom-Adatom Interaction
Junren Shi, Biao Wu, X. C. Xie +2
We propose that the indirect adatom-adatom interaction mediated by the conduction electrons of a metallic surface is responsible for the $\sqrt{3}\times \sqrt{3}\Leftrightarrow 3\t…