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arXiv · 2301.13365

Tunable Non-Markovianity for Bosonic Quantum Memristors

J. -L. Tang·G. Alvarado Barrios·E. Solano·F. Albarrán-Arriagada
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Abstract

We study the tunable control of the non-Markovianity of a bosonic mode due to its coupling 1 to a set of auxiliary qubits, both embedded in a thermal reservoir. Specifically, we consider a cavity 2 mode coupled to auxiliary qubits described by the Tavis-Cummings model. As a figure of merit, 3 we define the dynamical non-Markovianity as the tendency of a system to return to its initial state, 4 instead of evolving monotonically to its steady state. We study how this dynamical non-Markovianity 5 can be manipulated in terms of the qubit frequency. We find that the control of the auxiliary systems 6 affects the cavity dynamics as an effective time-dependent decay rate. Finally, we show how this 7 tunable time-dependent decay rate can be tuned to engineer bosonic quantum memristors, involving 8 memory effects that are fundamental for developing neuromorphic quantum technologies.

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J. -L. Tang, G. Alvarado Barrios, E. Solano, F. Albarrán-Arriagada. 2023-01-31. Tunable Non-Markovianity for Bosonic Quantum Memristors. https://doi.org/10.3390/e25050756

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