Generation of nonclassical states of light via photon blockade in optical nanocavities

Abstract

The generation of nonclassical states of light via photon blockade with time-modulated input is analyzed. We show that improved single-photon statistics can be obtained by adequately choosing the parameters of the driving laser pulses. An alternative method, where the system is driven via a continuous-wave laser and the frequency of the dipole is controlled (e.g., electrically) at very fast time scales is presented.

Multiphoton blockades in pulsed regimes beyond stationary limits

“…An analogous phenomenon of phonon blockade was predicted for an artificial superconducting atom coupled to a nanomechanical resonator [23], as well as the polariton blockade effect due to polariton-polariton interactions has been considered in [24]. Recently, PB was considered in dispersive qubit-field interactions in a superconductive coplanar waveguide cavity [25] and with time-modulated input [26].…”

“…In this way the photon-number effects and phase-space characteristics of photonic states can be controlled by choosing the parameters of driving pulses [26], [30]. In this section, we investigate production of two-photon and threephoton light states considering mainly the selectivity of the excitation of these states by driving pulses and their phase-space properties.…”

“…This approach was recently exploited for formation of high degree continuous-variable entanglement in the nondegenerate optical parametric oscillator [27,28], and for investigation of quantum interference in mesoscopic domain [29][30][31]. Recently, generation of nonclassical states in cavity QED with pulsed input has been investigated in [26] and production of a superposition states in the periodically pulsed nonlinear resonator has been demonstrated in [30], [32]. Dynamics of periodically driven nonlinear oscillator has been also studied in the papers [33]- [37].…”

Excitations of photon-number states in Kerr nonlinear resonator at finite temperatures

“…Thus, in the case of strong nonlinearity the oscillatory energy levels are well resolved and spectroscopic selective excitation of transitions between Fock states at the level of a few quanta becomes to be possible. This regime has been demonstrated in the photon blockade (PB) [3][4][5][6][7], generation of Fock states and superposition states in KNRs [7][8][9][10] and on changing PB into electromagnetically-induced transparency [11]. Note, that nonstationary PB in a context of Fock states generation was predicted in [12] for short-time evolution of a kicked KNR and then in [13].…”

Steady-state generation of negative-Wigner-function light using feedback

“…In the context of quantum metrology and information there has been a large amount of activity relating to the generation of nonclassical states of light such as squeezed states, single photon states, NOON states and Schrodinger cat/kitten states [5][6][7][8][9]. While squeezed states are routinely producible in the laboratory, other types of nonclassical light are not as easily produced.…”