On the effect of decoherence on quantum tunnelling
- URL: http://arxiv.org/abs/2011.12955v2
- Date: Sun, 19 Sep 2021 02:40:15 GMT
- Title: On the effect of decoherence on quantum tunnelling
- Authors: A. Y. Klimenko
- Abstract summary: The rate of decoherence is suggested to be examined indirectly, with minimal intrusions.
decoherence is understood here as a general process that does not involve any significant exchanges of energy.
It is shown that the effects on tunnelling of intrinsic decoherence and of decoherence due to unitary interactions with the environment are similar but not the same.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: This work proposes a series of quantum experiments that can, at least in
principle, allow for examining microscopic mechanisms associated with
decoherence. These experiments can be interpreted as a quantum-mechanical
version of non-equilibrium mixing between two volumes separated by a thin
interface. One of the principal goals of such experiments is in identifying
non-equilibrium conditions when time-symmetric laws give way to
time-directional, irreversible processes, which are represented by decoherence
at the quantum level. The rate of decoherence is suggested to be examined
indirectly, with minimal intrusions -- this can be achieved by measuring
tunnelling rates that, in turn, are affected by decoherence. Decoherence is
understood here as a general process that does not involve any significant
exchanges of energy and governed by a particular class of the Kraus operators.
The present work analyses different regimes of tunnelling in the presence of
decoherence and obtains formulae that link the corresponding rates of
tunnelling and decoherence under different conditions. It is shown that the
effects on tunnelling of intrinsic decoherence and of decoherence due to
unitary interactions with the environment are similar but not the same and can
be distinguished in experiments.
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