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Optics Letters

Nonreciprocal conventional photon blockade in driven dissipative atom-cavity

Wenxia Xue, H. Z. Shen, X. X. Yi

Published Jul 10, 2020• 57 citations
Publisher

Abstract

In this Letter, we propose a scheme to achieve a nonreciprocal conventional photon blockade in a nonlinear device consisting of an atom and spinning cavity by manipulating the detuning between the atom and the cavity. We show that the single-photon blockade can be generated by driving the spinning resonator from one side, while photon-induced tunneling is driven by the other side with the same driving strength. This nonreciprocal conventional photon blockade effect originates from the Fizeau-Sagnac drag, which leads to different splitting of the resonance frequencies for the counter-circulating modes. We give four optimal solutions for Fizeau-Sagnac shifts to generate a nonreciprocal conventional photon blockade with the arbitrary detunings between atom and cavity.

DOI
10.1364/ol.398247

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In this Letter, we propose a scheme to achieve a nonreciprocal conventional photon blockade in a nonlinear device consisting of an atom and spinning cavity by manipulating the detuning between the atom and the cavity. We show that the single-photon blockade can be generated by driving the spinning resonator from one side, while photon-induced tunneling is driven by the other side with the same driving strength. This nonreciprocal conventional photon blockade effect originates from the Fizeau-Sagnac drag, which leads to different splitting of the resonance frequencies for the counter-circulating modes. We give four optimal solutions for Fizeau-Sagnac shifts to generate a nonreciprocal conventional photon blockade with the arbitrary detunings between atom and cavity.
In this paper, we propose how to achieve nonreciprocal unconventional photon blockade (NUPB) in a spinning system consisting of two single-mode cavities with [Formula: see text] nonlinearity through the Fizeau drag when the two cavities are driven simultaneously. Under the weak driving condition, we discuss the physical origins of nonreciprocal unconventional photon blockade, which originates from the destructive interference between different paths from the ground state to the two-photon state by driving the device from the left side. While the quantum interference paths are broken when the device is driven from the right side, resulting in photon bunching. The optimal condition for the nonreciprocal unconventional photon blockade is analytically derived. We also calculate the analytical expression of the delayed-time second-order correction function and compare it with the numerical simulation. Finally, we show that nonreciprocal unconventional photon blockade never occurs with a single driving since two closed quantum pathways cannot be formed.
In this work, we propose to manipulate the statistical properties of the photons transport nonreciprocally via rotating nonlinear devices consisting of an atom coupled to a spinning cavity. This nonreciprocal effect allows the flow of light from one side but blocks it from the other with the same driving strength. We show that the nonreciprocal unconventional photon blockade can happen when the cavity is driven by the laser field. Under the weak driving condition, we discuss the physical origins of the nonreciprocal unconventional photon blockade, which originates from the destructive quantum interference between different paths from the ground state to the two-photon state by driving the device from the left side, while the quantum interference paths are broken when the device is driven from the right side, which leads to the occurring of the photon bunching. The optimal conditions for strong photon antibunching are analytically derived, which are in good agreement with those obtained by numerical simulations. Our proposal has potential applications for the on-chip nonreciprocal single-photon devices and provides an effective way for potential applications in solid state quantum computation and quantum information process.
We propose how to create and manipulate one-way nonclassical light via photon blockade in rotating nonlinear devices. We refer to this effect as nonreciprocal photon blockade (PB). Specifically, we show that in a spinning Kerr resonator, PB happens when the resonator is driven in one direction but not the other. This occurs because of the Fizeau drag, leading to a full split of the resonance frequencies of the countercirculating modes. Different types of purely quantum correlations, such as single- and two-photon blockades, can emerge in different directions in a well-controlled manner, and the transition from PB to photon-induced tunneling is revealed as well. Our work opens up a new route to achieve quantum nonreciprocal devices, which are crucial elements in chiral quantum technologies or topological photonics.
We propose a scheme to achieve nonreciprocal conventional photon blockades simultaneously in two independent optical modes, which are connected by a two-level system. In the case that only one optical mode is weakly driven, we find that strong nonreciprocal photon blockades of both optical modes can be observed. We show that, for both optical modes, the single-photon blockades happens by driving the nonlinear device from one side, while photon-induced tunneling appears when driving the system from the other side, which is attributed to the anharmonic eigenenergy spectrum constructed by resonantly coupling to a two-level system. According to photon resonance transition processes under different driving directions, the four optimal Fizeau-Sagnac shifts can be obtained to generate perfect nonreciprocal conventional photon blockades of both optical modes. Our study opens an avenue to simultaneously manipulate multiple nonreciprocal single-photon devices and may have potential applications in chiral quantum information processing.
We propose a scheme to realize nonreciprocal photon blockade and directional amplification in a spinning resonator with clockwise and counterclockwise traveling modes coupled to a stationary two-level atom. By manipulating the rotational frequency of the resonator, the two-level atom can be resonant with one of the traveling modes and largely detuned from the other one. Nonreciprocal conventional photon blockade is induced by the difference of the detunings between the two-level atom and the optical modes traveling in different directions. Besides that, nonreciprocal unconventional photon blockade (UPB) based on the quantum interference can also be observed in the system. Based on the mechanism for nonreciprocal UPB, directional amplification of the blockaded photons is predicted by driving the spinning resonator and stationary two-level atom simultaneously. Our proposal will be applicable to achieve highly efficient nonreciprocal single-photon devices for applications in chiral quantum information processing.
In this paper, we show that nonreciprocal unconventional photon blockade can be observed in a spinning cavity immersed in a degenerate optical parametric amplifier (OPA) driven by the laser driving with weak Kerr nonlinearities through the Fizeau drag. We analytically derive the optimal conditions for strong antibunching, which are in good agreement with those obtained by numerical simulations. Under the weak driving condition, we discuss the physical origins of the nonreciprocal unconventional photon blockade, which originates from the destructive interference between different paths from the ground state to two-photon states by driving the device from the left side. While the quantum interference paths are broken when the device is driven from the right side, which leads to the occurring of the photon bunching. Moreover, we extend the above results to the general non-Markovian regimes, in which the cavity couples with a thermal reservoir consisting of collection of infinite oscillators (bosonic photonic modes). We show nonreciprocal unconventional photon blockade exhibits a transition from the non-Markovian to Markovian regimes by controlling environmental spectral width regardless of the weakness of OPA gain and driving field.