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Memory Effects in Quantum Channel Discrimination
Open accessAbstract
We consider quantum-memory assisted protocols for discriminating quantum channels. We show that for optimal discrimination of memory channels, memory assisted protocols are needed. This leads to a new notion of distance for channels with memory, based on the general theory of quantum testers. For discrimination and estimation of sets of independent unitary channels, we prove optimality of parallel protocols among all possible architectures.
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Citations
Cited by
Theoretical framework for quantum networks
Chiribella, G., D’Ariano, G. M., & Perinotti, P. (2009) · Physical Review A · doi:10.1103/physreva.80.022339 · Cited by 517
Self-citationSequential feedback scheme outperforms the parallel scheme for Hamiltonian parameter estimation
Yuan, H. (2016) · Physical Review Letters · doi:10.1103/physrevlett.117.160801 · Cited by 112
Quantum learning algorithms for quantum measurements
Bisio, A., DʼAriano, G. M., Perinotti, P., & Sedlák, M. (2011) · Physics Letters A · doi:10.1016/j.physleta.2011.08.002 · Cited by 20
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Metadata
- Authors
- Chiribella, G., D’Ariano, G. M., & Perinotti, P.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2008-10-27
- Volume
- 101
- Issue
- 18
- Pages
- 180501-180501
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2140839707
- Cited by
- 160
- References
- 0
- FWCI
- 6.36
- Type
- journal article
- Language
- en
- Open access
- green
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