Subdiffusion via Disordered Quantum Walks
- URL: http://arxiv.org/abs/2007.12526v1
- Date: Fri, 24 Jul 2020 13:56:09 GMT
- Title: Subdiffusion via Disordered Quantum Walks
- Authors: Andrea Geraldi, Syamsundar De, Alessandro Laneve, Sonja Barkhofen, Jan
Sperling, Paolo Mataloni, Christine Silberhorn
- Abstract summary: We experimentally prove the feasibility of disordered quantum walks to realize a quantum simulator that is able to model general subdiffusive phenomena.
Our experiment simulates such phenomena by means of a finely controlled insertion of various levels of disorder during the evolution of the walker.
This allows us to explore the full range of subdiffusive behaviors, ranging from anomalous Anderson localization to normal diffusion.
- Score: 52.77024349608834
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: Transport phenomena play a crucial role in modern physics and applied
sciences. Examples include the dissipation of energy across a large system, the
distribution of quantum information in optical networks, and the timely
modeling of spreading diseases. In this work, we experimentally prove the
feasibility of disordered quantum walks to realize a quantum simulator that is
able to model general subdiffusive phenomena, exhibiting a sublinear spreading
in space over time. Our experiment simulates such phenomena by means of a
finely controlled insertion of various levels of disorder during the evolution
of the walker, enabled by the unique flexibility of our setup. This allows us
to explore the full range of subdiffusive behaviors, ranging from anomalous
Anderson localization to normal diffusion.
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