Bit threads and the membrane theory of entanglement dynamics
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)167
Abstract: Abstract Recently, an effective membrane theory was proposed that describes the “hydrodynamic” regime of the entanglement dynamics for general chaotic systems. Motivated by the new bit threads formulation of holographic entanglement entropy, given in terms… read more here.
Keywords: bit threads; entanglement dynamics; membrane theory; membrane ... See more keywords
Qubit–qubit entanglement dynamics control via external classical pumping and Kerr nonlinearity mediated by a single detuned cavity field powered by two-photon processes
Sign Up to like & getrecommendations! Published in 2017 at "Quantum Information Processing"
DOI: 10.1007/s11128-017-1714-8
Abstract: The nonlinear time-dependent two-photon Hamiltonian of a couple of classically pumped independent qubits is analytically solved, and the corresponding time evolution unitary operator, in an exact form, is derived. Using the concurrence, entanglement dynamics between… read more here.
Keywords: pumping; two photon; field; entanglement dynamics ... See more keywords
Exact Entanglement Dynamics in Three Interacting Qubits
Sign Up to like & getrecommendations! Published in 2018 at "Chinese Physics Letters"
DOI: 10.1088/0256-307x/35/11/110302
Abstract: Motivated by recent experimental study on coherent dynamics transfer in three interacting atoms or electron spins \cite{Barredo:2015,Rosenfeld:2018}, here we study entanglement entropy transfer in three interacting qubits. We analytically calculate time evolutions of wave function,… read more here.
Keywords: exact entanglement; three interacting; interacting qubits; entanglement dynamics ... See more keywords
Entanglement dynamics of thermofield double states in integrable models
Sign Up to like & getrecommendations! Published in 2022 at "Journal of Physics A: Mathematical and Theoretical"
DOI: 10.1088/1751-8121/ac646b
Abstract: We study the entanglement dynamics of thermofield double (TFD) states in integrable spin chains and quantum field theories. We show that, for a natural choice of the Hamiltonian eigenbasis, the TFD evolution may be interpreted… read more here.
Keywords: eld double; entanglement dynamics; dynamics thermo; double states ... See more keywords
Entanglement dynamics in random media
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review A"
DOI: 10.1103/physreva.96.062119
Abstract: We study how the entanglement dynamics between two-level atoms is impacted by random fluctuations of the light cone. In our model the two-atom system is envisaged as an open system coupled with an electromagnetic field… read more here.
Keywords: random media; dynamics random; system; entanglement dynamics ... See more keywords
Prethermalization and thermalization in entanglement dynamics
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.094303
Abstract: We investigate the crossover of the entanglement entropy toward its thermal value in nearly integrable systems. We employ equations-of-motion techniques to study the entanglement dynamics in a lattice model of weakly interacting spinless fermions after… read more here.
Keywords: prethermalization thermalization; thermalization entanglement; gge; value ... See more keywords
Observation of entanglement sudden death and rebirth by controlling a solid-state spin bath
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.064306
Abstract: Quantum entanglement, the essential resource for quantum information processing, has rich dynamics under different environments. Probing different entanglement dynamics typically requires exquisite control of complicated system-environment coupling in real experimental systems. Here, by a simple… read more here.
Keywords: sudden death; solid state; state spin; entanglement dynamics ... See more keywords