Spontaneous recoherence of quantum states after decoherence

A Quantum Coherence-Recoherence-Based Model of Reality

“…The kernel, though, is that recoherence never offers a 100% identical system as it was the case when coherence happened. Recoherence offers an "attenuated" copy of reality, as it has been said (de Ponte et al, 2010).…”

“…Quantum recoherence has been observed both as a spontaneous event (de Ponte et al, 2010), and experimentally induced (Chin et al, 2013;Xu et al, 2009). The origin of recoherence has apparently two distinct sources.…”

Upper bounds for the Poincaré recurrence time in quantum mixed states

“…Under certain type of wave packet (see [6,7,8,9,10,32]) estimations for the recurrence time can be obtained. In [14], assuming that |Ψ 0 has a finite decomposition in the basis of eigenfunctions {|i } of the Hamiltonian H, i.e.,…”

“…Poincaré recurrence is relevant in order to understand 'non-reversible' phenomena, such as the decoherence of a quantum system induced by the environment (see [5,7,27,34,37]), where, in order to obtain effective decoherence, a small quotient between the decoherence and the recurrence time is required. Poincaré recurrence could also play an important role in the loss of information that occurs in quantum black-holes (see [2,14,30]).…”

Decoerência e recoerência na dinâmica de estados quânticos: influência da injeção de ruído estocástico

“…6 Contudo, em alguns casos, a informação perdida pode ser recuperada, ao menos parcialmente. 7,8 Cabe notar que a dinâmica de um sistema quântico aberto é tipicamente descrita a partir da aproximação de Born-Markov o que leva a uma equação mestra na forma de Lindblad. 1 Essa aproximação deixa de fora possíveis efeitos de memória, tal como a recoerência, não permitindo uma correta descrição da dinâmica do sistema.…”