Vacuum squeezing is generated via residual 3WM in a SNAIL TWPA by choosing an operating flux point that favors 3WM over 4WM.
The external magnetic flux is controlled by injecting DC current in a superconducting coil placed alongside the device
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Three wave mixing vacuum squeezing generation in a SNAIL-based Traveling-Wave Parametric Amplifier with alternated flux polarity
Vacuum squeezing is generated via residual 3WM in a SNAIL TWPA by choosing an operating flux point that favors 3WM over 4WM.