Tracing Information Flow from Open Quantum Systems
- URL: http://arxiv.org/abs/2103.11994v2
- Date: Mon, 14 Nov 2022 13:32:59 GMT
- Title: Tracing Information Flow from Open Quantum Systems
- Authors: Jan Dziewior, Leonardo Ruscio, Lukas Knips, Eric Mayer, Alexander
Szameit, and Jasmin D. A. Meinecke
- Abstract summary: We use photons in a waveguide array to implement a quantum simulation of the coupling of a qubit with a low-dimensional discrete environment.
Using the trace distance between quantum states as a measure of information, we analyze different types of information transfer.
- Score: 52.77024349608834
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Open quantum systems are highly relevant, both for practical applications as
well as for fundamental questions about the nature of information and its
transfer, encompassing for example decoherence and memory effects. Quantum
mechanics introduces additional complexity to the transfer of information,
e.g., storage of information in non-classical correlations. Yet, some of these
aspects tend to be neglected by the usual framework of open system research. In
this work we use photons in a waveguide array to implement a quantum simulation
of the coupling of a qubit with a low-dimensional discrete environment. Using
the trace distance between quantum states as a measure of information, we
analyze different types of information transfer. Extending the usual
perspective which is focused on the system alone, we also investigate the
presence of information in the environment.
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