Polariton-based quantum memristors
arXiv:2108.09382 · doi:10.1103/PhysRevApplied.17.024056
Abstract
Information processing and storing by the same physical system is emerging as a promising alternative to traditional computing platforms. In turn, this requires the realization of elementary units whose memory content can be easily tuned and controlled. Here, we introduce a polariton-based quantum memristor where the memristive nature arises from the inter-cavity polariton exchange and is controlled by a time-varying atom-cavity detuning. A dynamical hysteresis is characterized by the fluctuations in the instantaneous polariton number, where the history information is encoded into a dynamical phase. Using a Lindblad master equation approach, we find that features of the quantum memristor dynamics, such as the area and circulation of the hysteresis loop, showcase a kind of "plasticity" controlled by quantum state initialization. This makes this quantum memristor very versatile for a wide range of applications
9 pages, 4 figures
References in corpus (9)
- Strongly Interacting Polaritons in Coupled Arrays of Cavities
- Memory effects in complex materials and nanoscale systems
- Quantum phase transitions of light
- Photon blockade induced Mott transitions and XY spin models in coupled cavity arrays
- Observation of a dissipative phase transition in a one-dimensional circuit QED lattice
- Memcomputing: a computing paradigm to store and process information on the same physical platform
- First-order sidebands in circuit QED using qubit frequency modulation
- Quantum Memristors in Frequency-Entangled Optical Fields
- Entangled Quantum Memristors