Perfect pulsed inline twin-beam squeezers
Martin Houde, Nicol\'as Quesada

TL;DR
This paper theoretically demonstrates how to realize perfect pulsed inline twin-beam squeezers that are spectrally pure and mode-matched, enabling precise quantum state manipulation in quantum optics.
Contribution
It provides analytical relations and conditions for achieving perfect inline squeezing in twin-beam systems, especially highlighting the effectiveness of a double pass configuration in a specific setup.
Findings
Double pass configuration yields perfect inline squeezing.
Frequency degenerate, symmetric group-velocity matched type-II setup is optimal.
Analytical relations derived from Bloch-Messiah decomposition.
Abstract
Perfect inline squeezers are both spectrally pure and have identical input and output temporal modes, allowing one to squeeze an arbitrary input quantum state in the sole input mode on which the device acts, while the quantum states of any other modes are unaffected. We study theoretically how to obtain a perfect pulsed inline squeezer in twin-beam systems by considering three commonly used configurations: unpoled single pass, poled single pass, and poled double pass. By obtaining analytical relations between the input and output temporal modes from the Bloch-Messiah decomposition of the discretized Heisenberg-picture propagator, we find that a double pass structure produces a perfect pulsed inline squeezer when operated in a frequency degenerate, symmetric group-velocity matched type-II configuration.
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Taxonomy
TopicsPhotonic and Optical Devices · Quantum and electron transport phenomena · Mechanical and Optical Resonators
