Entanglement timescale

Autor: I-Sheng Yang
Rok vydání: 2018
Předmět:
Zdroj: Physical Review
ISSN: 2470-0029
2470-0010
DOI: 10.1103/physrevd.97.066008
Popis: We derive the time scale for two initially pure subsystems to become entangled with each other through an arbitrary Hamiltonian that couples them. The entanglement timescale is inversely proportional to the “correlated uncertainty” between the two subsystems, a quantity which we will define and analyze in this paper. Our result is still applicable when one of the subsystems started in an arbitrarily mixed state, thus it generalizes the well-known “decoherence time scale” while coupled to a thermal state.
Databáze: OpenAIRE