Remote Creation of Quantum Coherence

Abstract

We study remote creation of coherence (RCC) for a quantum system, A, with the help of quantum operations on another system, B, and one-way classical communication.We show that all the nonincoherent quantum states are useful for RCC and all the incoherent-quantum states are not. The necessary and sufficient conditions of RCC for the quantum operations on system B are presented for pure states. The upper bound of average RCC is derived, giving a relation among the entanglement (concurrence), the RCC of the given quantum state, and the RCC of the corresponding maximally entangled state. Moreover, for two-qubit systems we find a simple factorization law for the average remote-created coherence.

6 pages, 1 figure

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Cited by in corpus (11)

• Estimating coherence measures from limited experimental data available
• Maximal steered coherence and its conversion to entanglement in multiple bosonic reservoirs
• Accessible Coherence and Coherence Distribution
• Enhancing coherence of a state by stochastic strictly incoherent operations
• Measuring coherence of quantum measurements
• Correlation-induced coherence and its use in detecting quantum phase transitions
• Quantum correlations in composite systems
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• Generation of Coherence via Gaussian Measurements
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