89 citations · 316 across the 13 of their papers we have counts for
13 papers
Quantum Brayton cycle with coupled systems as working substance
X. L. Huang, L. C. Wang, X. X. Yi
We explore the quantum version of Brayton cycle with a composite system as the working substance. The actual Brayton cycle consists of two adiabatic and two isobaric processes. Two…
Coupled dynamics of an atom and an optomechanical cavity
X. X. Yi, H. Y. Sun, L. C. Wang
We consider the motion of the end mirror of a cavity inside which a two-level atom trapped. The fast vibrating mirror induces nonlinear couplings between the cavity field and the a…
Effect of feedback on the control of a two-level dissipative quantum system
L. C. Wang, X. L. Huang, X. X. Yi
We show that it is possible to modify the stationary state by a feedback control in a two-level dissipative quantum system. Based on the geometric control theory, we also analyze t…
Reply to 'comment on Berry phase in a composite system'
X. X. Yi, L. C. Wang, T. Y. Zheng
In this reply, we show that the adiabatic theorem would break down in the weak coupling limit, and the definition for the subsystem geometric phase is well defined.
Landau-Zener transition of a two-level system driven by spin chains near their critical points
L. C. Wang, X. L. Huang, X. X. Yi
The Landau-Zener(LZ) transition of a two-level system coupling to spin chains near their critical points is studied in this paper. Two kinds of spin chains, the Ising spin chain an…
Geometric phase in open systems: beyond the Markov approximation and weak coupling limit
X. X. Yi, D. M. Tong, L. C. Wang +2
Beyond the quantum Markov approximation and the weak coupling limit, we present a general theory to calculate the geometric phase for open systems with and without conserved energy…