Tunable frequency-bin multi-mode squeezed states of light

TL;DR

This paper introduces a method to generate tunable, multi-mode frequency-bin squeezed states of light using engineered spontaneous parametric downconversion, enabling real-time control for advanced quantum applications.

Contribution

It presents a novel, single-pass technique for creating tunable multi-mode squeezed states in frequency bins with real-time adjustability via pump field properties.

Findings

Successful generation of multi-mode frequency-bin squeezed states

Real-time tunability demonstrated through pump field adjustments

Potential for new quantum applications using encoded degrees of freedom

Abstract

Squeezed states are a versatile class of quantum states with applications ranging from quantum computing to high-precision detection. We propose a method for generating tunable squeezed states of light with multiple modes encoded in frequency bins. Our method uses custom-engineered spontaneous parametric downconversion pumped by a pulse-shaped pump field. The multi-mode squeezed states are generated in a single pass and can be tuned in real time by adjusting the properties of the pump field. Exploring new quantum states of light, encoded in new degrees of freedom, can be a fruitful path toward discovering new quantum applications.