Marletto Chiara, Vedral Vlatko, Virzì Salvatore, Rebufello Enrico, Avella Alessio, Piacentini Fabrizio, Gramegna Marco, Degiovanni Ivo Pietro, Genovese Marco
Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK.
Centre for Quantum Technologies, National University of Singapore, 3 Science Drive 2, Singapore 117543, Singapore.
Entropy (Basel). 2020 Feb 18;22(2):228. doi: 10.3390/e22020228.
Pseudo-density matrices are a generalisation of quantum states and do not obey monogamy of quantum correlations. Could this be the solution to the paradox of information loss during the evaporation of a black hole? In this paper we discuss this possibility, providing a theoretical proposal to extend quantum theory with these pseudo-states to describe the statistics arising in black-hole evaporation. We also provide an experimental demonstration of this theoretical proposal, using a simulation in optical regime, that tomographically reproduces the correlations of the pseudo-density matrix describing this physical phenomenon.
伪密度矩阵是量子态的一种推广，并不遵循量子关联的一夫一妻制。这会是黑洞蒸发过程中信息丢失悖论的解决方案吗？在本文中，我们讨论这种可能性，提出一个理论建议，用这些伪态扩展量子理论，以描述黑洞蒸发中出现的统计现象。我们还通过光学领域的模拟对这一理论建议进行了实验验证，该模拟通过层析成像再现了描述这一物理现象的伪密度矩阵的关联。
