Year: 2026
Type: preprint
Abstract: We investigate the generation of deterministic and heralded non-Gaussian states of light, using a single two-level system coupled to a chiral waveguide. We study the case of a single two level system driven by pulsed coherent and squeezed drive in a chiral waveguide. For coherent input pulses, we show that the emitter can deterministically generate Wigner-negative states, albeit of limited rank. Going beyond, using squeezed-vacuum inputs, we show that the interaction produces rich bimodal non-Gaussian states from which higher-stellar-rank states, including large squeezed cat states, can be experimentally extracted with a substantial success rate. For experimental feasibility and comparison, we analyze the effect of imperfect coupling and of the intrinsic $50\%$ collection limit of symmetric, non-chiral waveguides. Following that, we propose a simple interferometric scheme that recovers an effectively chiral interaction in an otherwise bidirectional waveguide.
Source: arXiv (Cornell University)
Language: English
Subfield: Atomic and Molecular Physics, and Optics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
Awards: G1171162939, G1190173965, G2770661476, G3810236772, G4759007921, G5032364540, QuantERA ERA-NET Cofund in Quantum Technologies, From NISQ to LSQ: Bosonic and LDPC codes, G575169067, QuantERA II ERA-NET Cofund in Quantum Technologies, Ordinateurs quantiques à base de lumière en variables discrètes et continues
OpenAlex ID: W7172538989