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High-Fidelity Resonator-Induced Phase Gate with Single-Mode Squeezing
We propose to increase the fidelity of two-qubit resonator-induced phase gates in circuit QED by the use of narrowband single-mode squeezed drive. We show that there exists an optimal squeezing angle and strength that erases qubit 'which-path' information leaking out of the cavity and thereby minimizes qubit dephasing during these …