Quantum optical diode with semiconductor microcavities

Abstract

The semiconductor diode, which acts as an electrical rectifier and allows unidirectional electronic transports, is the key to information processing in integrated circuits. Analogously, an optical rectifier (or diode) working at specific target wavelengths has recently becomes a dreaming device in optical communication and signal processing. In this paper, we propose a scheme to realize an optical diode for photonic transport at the level of few photons. The system consists of two spatially overlapping single-mode semiconductor microcavities coupled via ${\chi }^{(2)}$ nonlinearities. The photon blockade is predicted to take place in this system. These photon blockade effects can be achieved by tuning the frequency of the input laser field (driving field). Based on those blockades, we derive analytically the single- and two-photon current in terms of zero and finite-time delayed two-order correlation function. The results suggest that the system can serve as an single- and two-photon quantum optical diodes which allow transmission of photons in one direction much more efficiently than in the other.

13 pages, 6 figures

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• Method for observing robust and tunable phonon blockade in a nanomechanical resonator coupled to a charge qubit
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• Nonreciprocity via nonlinearity and synthetic magnetism
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• Single photon transmission in strong three-mode optomechanical circulatory system
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• Critical features of nonlinear optical isolators for improved nonreciprocity
• Non-linear transport in an out-of-equilibrium single-site Bose Hubbard model: scaling, rectification and time dynamics
• Accurate phonon blockade detector composed of a quadratically coupled optomechanical system
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• Single photons from a gain medium below threshold
• Optomechanical second-order sidebands and group delays in a spinning resonator with parametric amplifier and non-Markovian effects
• All-optical transistor based on Rydberg atom-assisted opto-mechanical system
• Partially dark optical molecule via phase control
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• Nonlocal nonreciprocal optomechanical circulator
• Preparation of Schrödinger cat quantum state using parametric down-conversion interaction
• Dissipation-assisted few-photon optical diode
• Tunable photon blockade in a two-mode second-order nonlinear system embedded with a two-level atom
• Enhancing self-discharging process with disordered quantum batteries
• Antibunching via cooling by heating