Abstract
The generated magnitude of quadrature squeezing in a cavity-coupled ensemble, which is continuously driven using a coherent off-axis field, is theoretically explored. Using a truncated set of equations of motion derived from a Dicke Hamiltonian, steady-state quadrature squeezing of the cavity field is numerically calculated to approach a limit of -3dB, while frequency-modulated quadrature squeezing approaches a limit of -14dB, in the absence of pure dephasing and as a function of the ensemble's size and detuning. The impact of pure dephasing on steady-state quadrature squeezing is shown to be mitigated by increased detuning of the driving field, while frequency-modulated squeezing is only shielded in a regime where the cumulative coupling and driving rates are in excess of the pure-dephasing rate. Spin-squeezed entanglement is also calculated to occur simultaneously with weakly driven frequency-modulated quadrature squeezing.
Original language | English |
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Article number | 023701 |
Journal | Physical Review A |
Volume | 103 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2021 |
Subject classification (UKÄ)
- Atom and Molecular Physics and Optics