Quantum Stochastic Walk models for quantum state discrimination
| Autor: | Filippo Caruso, Nicola Dalla Pozza |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Quantum network Quantum Physics Quantum decoherence Generalization FOS: Physical sciences General Physics and Astronomy TheoryofComputation_GENERAL Network topology Random walk 01 natural sciences 010305 fluids & plasmas Open quantum system Decoherence Quantum state discrimination Quantum Stochastic Walk Quantum state ComputerSystemsOrganization_MISCELLANEOUS 0103 physical sciences Statistical physics Quantum Physics (quant-ph) 010306 general physics Quantum |
| Zdroj: | Physics Letters A |
| ISSN: | 0375-9601 |
| DOI: | 10.1016/j.physleta.2019.126195 |
| Popis: | Quantum Stochastic Walks (QSW) allow for a generalization of both quantum and classical random walks by describing the dynamic evolution of an open quantum system on a network, with nodes corresponding to quantum states of a fixed basis. We consider the problem of quantum state discrimination on such a system, and we solve it by optimizing the network topology weights. Finally, we test it on different quantum network topologies and compare it with optimal theoretical bounds. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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