International Conference on Optoelectronic Materials and Devices (ICOMD)

Research on photon blockade based on two-photon dissipation

Hongming Tao

Published May 18, 2026• 0 citations

Abstract

The photon blockade (PB) effect represents a quintessential manifestation of quantum optical nonlinearity, where the presence of a single photon within an optical cavity prevents the entry of a second one, thereby realizing a single-photon source. This effect underpins numerous applications in quantum information processing, secure communication, and quantum computation. Nevertheless, the intrinsic nonlinearity of practical optical systems is often too weak to produce a strong blockade, making the enhancement and controllability of the PB effect a persistent challenge. To overcome this limitation, we investigate a two-cavity quantum system incorporating two-photon dissipation as an alternative mechanism for realizing photon blockade. In contrast to conventional schemes that primarily consider single-photon loss, the proposed configuration introduces a second-order nonlinear dissipation channel, through which the correlated loss of photon pairs fundamentally modifies the photon statistics and strengthens the blockade effect. Based on quantum master equation theory, we constructed a model of a two-cavity system incorporating two-photon dissipation and analyzed the effect of different parameters on the photon blockade effect through numerical simulations.

DOI: 10.1117/12.3110231

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