Speaker
Description
The generation of specific quantum states of light is incredibly important for the emergence of many quantum technologies, but remains a challenging task. For example, Gottesman-Kitaev-Preskill (GKP) states are current frontrunners for use in quantum error correction within photonic quantum computing models. Most proposed methods for generating particular quantum states of light are complicated and probabilistic, relying on many stages of heralding or other conditional measurements, and remain extremely difficult to experimentally implement.
Within our work we show, using newly developed numerical techniques to solve quantum-optical master equations, that instead of relying on any of these probabilistic methods, many useful and uniquely quantum states of light can be theoretically generated simply by driving a spin system with a pulse of light. We show that using pulses of light prepared in readily available quantum states, such as gaussian squeezed or coherent states, we can entirely deterministically generate a variety of new quantum states.
In particular, we focus on the generation of GKP-like quantum states, which our method achieves at greater efficiency than the currently demonstrated probabilistic methods, the generation of near-perfect displaced N-photon states, and the general creation of strongly Wigner-negative states of light. We also briefly discuss our new numerical methods, and show how in pulsed systems they can be hundreds of times faster than the commonly used computational tools.
| I am the presenting author | Yes |
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