Multiphoton blockades in pulsed regimes beyond the stationary limits

TL;DR

This paper demonstrates multiphoton blockades in a Kerr nonlinear resonator driven by Gaussian pulses, showing they surpass fundamental limits of continuous-wave excitation and enabling Fock state generation.

Contribution

It introduces a pulsed excitation scheme for multiphoton blockades that exceeds the limitations of continuous-wave driving, with detailed analysis of phase-space properties and Fock state generation.

Findings

Multiphoton blockades are achievable beyond continuous-wave limits.

Pulsed excitation enables generation of Fock states.

Phase-space analysis confirms nonclassical photon states.

Abstract

We demonstrate multiphoton blockades (PB) in the pulsed regime by using Kerr nonlinear dissipative resonator driven by a sequence of Gaussian pulses. It is shown that the results obtained for single-photon, two-photon and three-photon blockades in the pulsed excitation regime differ considerably from analogous results obtained for the case of continuous-wave (cw) driving. We strongly demonstrate that for the case of cw pumping of the Kerr-nonlinear resonator there are fundamental limits on populations of lower photonic number-states (with n = 0, 1, 2, 3). Thus, such detailed comparison demonstrates that PB due to excitation with a suitable photon pulses is realized beyond the fundamental limits established for cw excitations. We analyze photon-number effects and investigate phase-space properties of PB on the base of photon number populations, the second-order correlation functions and the Wigner functions in phase space. Generation of Fock states due to PB in the pulsed regime is analysed in details.