Metastable decoherence-free subspace and pointer states in mesoscopic quantum systems

Autor:	Lastra, F., López, C. E., Retamal, J. C.
Rok vydání:	2018
Předmět:	Quantum Physics
Zdroj:	Phys. Rev. A 97, 042123 (2018)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevA.97.042123
Popis:	Two initially correlated coherent states, each interacting with its own independent dissipative environment exhibit a sudden transition from classical to quantum decoherence. This change in the dynamics is a turning point in the decoherence, in the sense that depending on the average number of photons of each cavity, decoherence can even be suppressed. Indeed, the quantum state is time-independent for a time span in the mesoscopic regime, revealing a decoherence-free subspace. Furthermore, the absence of decoherence is manifested in the apparition of a metastable pointer state basis. Comment: 5 Pages, 4 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1801.09310 Zobrazit plný text záznamu View this record from Arxiv