53 citations · 122 across the 7 of their papers we have counts for
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Preparing macroscopic mechanical quantum superpositions via photon detection
Huiping Zhan, Gaoxiang Li, Huatang Tan
In this paper, we propose a feasible scheme for generating the Schrödinger cat states of a macroscopic mechanical resonator in pulsed cavity optomechanics. Starting with cooling th…
Deterministic macroscopic quantum superpositions of motion via quadratic optomechanical coupling
Huatang Tan, F. Bariani, Gaoxiang Li +1
We propose a scheme to prepare macroscopic quantum superpositions of motion in optomachanical nano- or micromechanical oscillators quadratically coupled to an intracavity field. Th…
Nullity of quantum discord of two-qubit X-state systems
Gao-xiang Li, Zhen Yi, Zbigniew Ficek
The conditions are established for nullity of quantum discord for mixed states of a general two-qubit system whose dynamical behaviour is given by an X-state form density matrix. I…
Continuous variables approach to entanglement creation and processing
Li-hui Sun, Gao-xiang Li, Zbigniew Ficek
We apply the continuous variable approach to study entangled dynamics of coupled harmonic oscillators interacting with a thermal reservoir and to a deterministic creation of entang…
Generation of pure continuous-variable entangled cluster states of four separate atomic ensembles in a ring cavity
Gao-xiang Li, Sha-sha Ke, Zbigniew Ficek
A practical scheme is proposed for creation of continuous variable entangled cluster states of four distinct atomic ensembles located inside a high-finesse ring cavity. The scheme…
Cavity-induced giant Kerr nonlinearities in a driven V-type atom
Rong Tan, Gao-xiang Li, Zbigniew Ficek
We discuss a simple and experimentally realizable model for creation of enhanced Kerr nonlinearities accompanied by vanishing absorption. The model involves a V-type atom subjected…