ncku-talk2017-04-24

NCTS (South)

DATE 2017-04-24

TIME 12:10-13:30

PLACE R49223, Second Physics Building , NCKU

FIELD Quantum Information Science

SPEAKER Dr. Clemens Gneiting - 日本理化學研究所

TITLE Disordered quantum systems from an open system perspective

ABSTRACT Similar to open quantum systems, the ensemble-averaged state of disordered quantum systems in general follows incoherent time evolution. Based on this analogy, we can describe the dynamics of disordered systems in terms of quantum master equations. This approach allows us to access the full disorder-perturbed quantum state, both on the level of populations and coherences. Moreover, we can relate disordered quantum systems to open quantum systems and vice versa. As an example, we analyze the propagation of a particle in a disorder-perturbed waveguide. We quantify wave packet distortion, backscattering, and disorder-induced dephasing, and identify conditions for reliable quantum state transmission.

NCTS (South)

DATE	2017-04-24

TIME	12:10-13:30

PLACE	R49223, Second Physics Building , NCKU

FIELD	Quantum Information Science

SPEAKER	Dr. Clemens Gneiting - 日本理化學研究所

TITLE	Disordered quantum systems from an open system perspective

ABSTRACT	Similar to open quantum systems, the ensemble-averaged state of disordered quantum systems in general follows incoherent time evolution. Based on this analogy, we can describe the dynamics of disordered systems in terms of quantum master equations. This approach allows us to access the full disorder-perturbed quantum state, both on the level of populations and coherences. Moreover, we can relate disordered quantum systems to open quantum systems and vice versa. As an example, we analyze the propagation of a particle in a disorder-perturbed waveguide. We quantify wave packet distortion, backscattering, and disorder-induced dephasing, and identify conditions for reliable quantum state transmission.