Time evolution of entanglement negativity across a defect
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ab831c
Abstract: We consider a quench in a free-fermion chain by joining two homogeneous half-chains via a defect. The time evolution of the entanglement negativity is studied between adjacent segments surrounding the defect. In case of equal… read more here.
Keywords: time; evolution entanglement; entanglement negativity; negativity ... See more keywords
Evolution of entanglement under an Ising-like Hamiltonian with particle losses
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DOI: 10.1103/physreva.96.062312
Abstract: We present analytical compact solution for the density matrix and correlation functions of two collective-macroscopic spins evolving via Ising-like Hamiltonian in the presence of particle losses. The losses introduce non-local phase noise which destroys highly… read more here.
Keywords: evolution entanglement; particle losses; ising like; like hamiltonian ... See more keywords
Entangled State Evolution and Entanglement Transfer in Quantum Mesoscopic Coupled Circuits
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.89.094005
Abstract: A mesoscopic circuit, where field quantization (e.g., coherent states and squeezed states) can be exhibited, is one of the ideal quantum systems for manifesting diverse quantum field theoretical ph... read more here.
Keywords: evolution entanglement; quantum; entanglement transfer; state evolution ... See more keywords