title: Quantum Phase Coherence in Mesoscopic Transport Devices with Two-Particle Interaction.
abstract: In this paper we demonstrate a new type of quantum phase coherence (QPC), which is generated by the two-body interaction. This conclusion is based on quantum master equation analysis for the full counting statistics of electron transport through two parallel quantum-dots with antiparallel magnetic fluxes in order to eliminate the Aharonov-Bohm interference of either single-particle or non-interacting two-particle wave functions. The interacting two-particle QPC is realized by the flux-dependent oscillation of the zero-frequency cumulants including the shot noise and skewness with a characteristic period. The accurately quantized peaks of cumulant spectrum may have technical applications to probe the two-body Coulomb interaction.
authors.affiliation: Institute of Theoretical Physics, Shanxi University, Shanxi, Taiyuan 030006, China.
authors.forename: Zhimei
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Institute of Theoretical Physics, Shanxi University, Shanxi, Taiyuan 030006, China.
authors.forename: Xiaofang
authors.initials: X
authors.lastname: Guo
authors.affiliation: College of Physics and Optoelectrics, Taiyuan University of Technology, Taiyuan 030024, China.
authors.forename: Haibin
authors.initials: H
authors.lastname: Xue
authors.affiliation: Institute of Theoretical Physics, Shanxi University, Shanxi, Taiyuan 030006, China.
authors.forename: Naitao
authors.initials: N
authors.lastname: Xue
authors.affiliation: Institute of Theoretical Physics, Shanxi University, Shanxi, Taiyuan 030006, China.
authors.forename: J-Q
authors.initials: JQ
authors.lastname: Liang