Entanglement dynamics of two qubits coupled individually to Ohmic baths

Entanglement dynamics of two qubits coupled individually to Ohmic baths.

Developed originally for the Holstein polaron, the Davydov D1 ansatz is an efficient, yet extremely accurate trial state for time-dependent variation of the spin-boson model [N. Wu, L. Duan, X. Li, and Y. Zhao, J. Chem. Phys. 138, 084111 (2013)]. In this work, the Dirac-Frenkel time-dependent variational procedure utilizing the Davydov D1 ansatz is implemented to study entanglement dynamics of ...

Entanglement of Two Coupled Charge Qubits

YU. A. PASHKIN, T. TILMA, D. V. AVERIN, O. ASTAFIEV, T. YAMAMOTO, Y. NAKAMURA, F. NORI and J. S. TSAI The Institute of Physical and Chemical Research (RIKEN), 2-1 Hirosawa, Wako, Saitama 305-0198, Japan Department of Physics and Astronomy, Stony Brook University, SUNY Stony Brook, NY 11794, USA NEC Fundamental Research Laboratories, 34 Miyukigaoka, Tsukuba, Ibaraki 305-8501, Japan Department of...

Entanglement dynamics of two qubits in a common bath

Jian Ma,1,2 Zhe Sun,1,3 Xiaoguang Wang,1,2 and Franco Nori1,4 1Advanced Science Institute, RIKEN, Wako-shi, Saitama 351-0198, Japan 2Zhejiang Institute of Modern Physics, Department of Physics, Zhejiang University, Hangzhou 310027, China 3Department of Physics, Hangzhou Normal University, Hangzhou 310027, China 4Physics Department, University of Michigan, Ann Arbor, Michigan 48109-1040, USA (Re...

Driven Nonlinear Dynamics of Two Coupled Exchange-Only Qubits

Entanglement of Bell Mixtures of Two Qubits

This paper is an appendix to a previous paper: quant-ph/0101123 “Relaxation Method for Calculating Quantum Entanglement”, by Robert Tucci. For certain mixtures of Bell basis states, namely the Werner States, we use the theoretical machinery of our previous paper to derive algebraic formulas for: the pure and mixed minimization entanglements (i.e., Epure and Emixed), their optimal decompositions...