Single‐ and Two‐Mode Squeezing by Modulated Coupling to a Rabi Driven Qubit
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Abstract
Advanced bosonic quantum computing architectures demand nonlocal Gaussian operations such as two‐mode squeezing to unlock universal control, enable entanglement generation, and implement logical operations across distributed modes. This work presents a novel method for generating conditional squeezing using a Rabi‐driven qubit dispersively coupled to one or two harmonic oscillators. A proof that this enables universal control over bosonic modes is provided, expanding the toolkit for continuous‐variable quantum information processing. Using modulated Jaynes–Cummings interactions in circuit QED, the simulation predicts intra‐cavity squeezing of 13dB (single‐mode), 4dB (superimposed single‐mode), and 12dB (two‐mode), with the latter two yet to be demonstrated experimentally. These results establish a new paradigm for qubit‐conditioned control of photonic states, with applications to quantum sensing and continuous‐variable computation on readily available systems.