Giulio Gasbarri (Avtor), L. Ferialdi (Avtor)

Povzetek

We consider open quantum systems with factorized initial states, providing the structure of the reduced system dynamics, in terms of environment cumulants. We show that such completely positive (CP) and trace preserving (TP) maps can be unraveled by linear stochastic Schrödinger equations (SSEs) characterized by sets of colored stochastic processes (with n-th order cumulants). We obtain both the conditions such that the SSEs provide CPTP dynamics, and those for unraveling an open system dynamics. We then focus on Gaussian non-Markovian unravellings, whose known structure displays a functional derivative. We provide a novel description that replaces the functional derivative with a recursive operatorial structure. Moreover, for the family of quadratic bosonic Hamiltonians, we are able to provide an explicit operatorial dependence for the unravelling.

Ključne besede

kvantna mehanika;odprti kvantni sistemi;quantum mechanics;open quantum systems;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 530.145
COBISS: 42754563 Povezava se bo odprla v novem oknu
ISSN: 2469-9926
Št. ogledov: 286
Št. prenosov: 209
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: kvantna mehanika;odprti kvantni sistemi;
Strani: str. 042111-1-042111-11
Letnik: ǂVol. ǂ98
Zvezek: ǂiss. ǂ4
Čas izdaje: 2018
DOI: 10.1103/PhysRevA.98.042111
ID: 12267646