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Article Dans Une Revue Scientific Reports Année : 2019

Quantum walk hydrodynamics

Résumé

A simple Discrete-Time Quantum Walk (DTQW) on the line is revisited and given an hydrodynamic interpretation through a novel relativistic generalization of the Madelung transform. Numerical results show that suitable initial conditions indeed produce hydrodynamical shocks and that the coherence achieved in current experiments is robust enough to simulate quantum hydrodynamical phenomena through DTQWs. An analytical computation of the asymptotic quantum shock structure is presented. The non-relativistic limit is explored in the Supplementary Material (SM).
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Dates et versions

hal-02057635 , version 1 (05-03-2019)

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Mohamed Hatifi, Giuseppe Di Molfetta, Fabrice Debbasch, Marc Brachet. Quantum walk hydrodynamics. Scientific Reports, 2019, 9 (1), pp.2989 (2019). ⟨10.1038/s41598-019-40059-x⟩. ⟨hal-02057635⟩
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