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Source publication
The appearance of a few unevenly spaced bright flashes of light on top of Hawking radiation is the sign of the amplification effect in black hole horizon fluctuations. Previous studies on this problem suffer from the lack of considering all emitted photons in the theoretical spectroscopy of these fluctuations. In this paper, we include all of the p...
Context in source publication
Context 1
... one may consider the fluctuations of black hole horizon into non-null surfaces in the vicinity of a classical null boundary. Figure (1) represents the null boundary in black sphere and non-null surfaces as a cover shell in its vicinity. The geometry of this shell can be connected into exterior and interior space-time sectors via the out- coming and ingoing edges, respectively. ...
Citations
... Many systems in classical physics carry entropy. Some of the most studied systems are: charge transport at a point contact [22,23], energy transport in heat engines [24], and a gravitational hypersurface falling into a black hole [25][26][27][28]. Let us for simplicity of the discussion review classical entropy by means of the example of charge transport through a point contact. ...
Currently, ‘time’ does not play any essential role in quantum information theory. In this sense, quantum information theory is underdeveloped similarly to how quantum physics was underdeveloped before Erwin Schrödinger introduced his famous equation for the evolution of a quantum wave function. In this review article, we cope with the problem of time for one of the central quantities in quantum information theory: entropy. Recently, a replica trick formalism, the so-called ‘multiple parallel world’ formalism, has been proposed that revolutionizes entropy evaluation for quantum systems. This formalism is one of the first attempts to introduce ‘time’ in quantum information theory. With the total entropy being conserved in a closed system, entropy can flow internally between subsystems; however, we show that this flow is not limited only to physical correlations as the literature suggest. The nonlinear dependence of entropy on the density matrix introduces new types of correlations with no analogue in physical quantities. Evolving a number of replicas simultaneously makes it possible for them to exchange particles between different replicas. We will summarize some of the recent news about entropy in some example quantum devices. Moreover, we take a quick look at a new correspondence that was recently proposed that provides an interesting link between quantum information theory and quantum physics. The mere existence of such a correspondence allows for exploring new physical phenomena as the result of controlling entanglement in a quantum device.
... Many systems in classical physics carry entropy. Some of the most studied systems are: charge transport at a point contact [22,23], energy transport in heat engines [24], and a gravitational hypersurface falling into a black hole [25][26][27][28]. Let us for simplicity of the discussion review classical entropy by means of the example of charge transport through a point contact. ...
Currently `time' does not play any essential role in quantum information theory. In this sense quantum information theory is underdeveloped similar to how quantum physics was before Erwin Schrodinger introduces his equation for the evolution of a quantum wave function. In this review article, we cope with the problem of time for one of the central quantities in quantum information theory, entropy. Recently a replica trick formalism, the so-called `multiple parallel world', has been proposed that revolutionizes entropy evaluation for quantum systems. This formalism in one of the first attempts to introduce `time' in quantum information theory. With the total entropy being conserved in a closed system, entropy can flow internally between subsystems, however we show that this flow is not limited only to physical correlations as the literature suggest. The nonlinear dependence on density matrix introduces new types of correlations with no analogue in physical quantities. Evolving a number of replicas simultaneously makes it possible that they exchange particles between different replicas. We will summarize some of the recent news about entropy in some example quantum devices. Moreover, we take a quick look at a new correspondence that was recently proposed that provides an interesting link between quantum information theory and quantum physics. The mere existence of such a correspondence allows exploring new physical phenomena as the result of controlling entanglement in a quantum device.
