Certifying quantum memories with coherence
arXiv:1809.03403 · doi:10.1103/PhysRevA.99.062319
Abstract
Quantum memories are an important building block for quantum information processing. Ideally, these memories preserve the quantum properties of the input. We present general criteria for measures to evaluate the quality of quantum memories. Then, we introduce a quality measure based on coherence satisfying these criteria, which we characterize in detail for the qubit case. The measure can be estimated from sparse experimental data and may be generalized to characterize other building blocks, such as quantum gates and teleportation schemes.
arXiv comment10 pages, 4 figures
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Cited by in corpus (11)
- Operational Resource Theory of Quantum Channels
- Dynamical Resource Theory of Quantum Coherence
- Quantifying Quantumness of Channels Without Entanglement
- Universal and Operational Benchmarking of Quantum Memories
- Quantification of quantum dynamics with input-output games
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- Weight-based measure of quantum memory as a universal and operational benchmark