Single- and Two-Mode Squeezing by Modulated Coupling to a Rabi Driven Qubit

• URL: http://arxiv.org/abs/2507.22641v1
• Date: Wed, 30 Jul 2025 12:58:10 GMT
• Title: Single- and Two-Mode Squeezing by Modulated Coupling to a Rabi Driven Qubit
• Authors: Eliya Blumenthal, Nir Gutman, Ido Kaminer, Shay Hacohen-Gourgy,
• Abstract summary: This work presents a novel method for generating conditional squeezing using a Rabi-driven qubit dispersively coupled to one or two harmonic oscillators.<n>A proof that this enables universal control over bosonic modes is provided, expanding the toolkit for continuous-variable quantum information processing.<n>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.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• 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.

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