131 citations · 501 across the 22 of their papers we have counts for
6 papers · 1 filter
Quantum energy transfer between nonlinearly-coupled bosonic bath and a fermionic chain: an exactly solvable model
Zhao-Ming Wang, Da-Wei Luo, Baowen Li +1
The evolution of a quantum system towards thermal equilibrium is usually studied by approximate methods, which have their limits of validity and should be checked against analytica…
Quantum mechanics and speed limit of ultrafast local control in spin chains
P. V. Pyshkin, E. Ya. Sherman, Lian-Ao Wu
We study optimization of fidelity for ultrafast transformation of a spin chain via external control of a local exchange coupling. We show that infidelity of such a process can be d…
Geometric decoherence in diffusive open quantum systems
Da-Wei Luo, Hai-Qing Lin, J. Q. You +3
Based on a generic quantum open system model, we study the geometric nature of decoherence by defining a complex-valued geometric phase through stochastic pure states describing no…
Photonic Newton's Cradle for Remote Energy Transport
Zhen Feng, Zhen-Wei Gao, Lian-Ao Wu +13
Energy transport is of central importance in understanding a wide variety of transitions of physical states in nature. Recently, the coherence and noise have been identified for th…
Non-adiabatic transformation of a spin-chain geometry via local control
P. V. Pyshkin, E. Ya. Sherman, Lian-Ao Wu
We consider transformation from a closed to an open spin chain and vice versa produced by changing single link strength in a pair of neighboring spins. We show that in the non-adia…
Measurement-induced cooling of a qubit in structured environments
Jia-Ming Zhang, Jun Jing, Lian-Ao Wu +2
In this work, we study the thermodynamics of a two-level system (qubit) embedded in a finite-temperature structured-bath under periodical measurements. The system under measurement…