A controlled-squeeze gate in superconducting quantum circuits
- URL: http://arxiv.org/abs/2408.08404v1
- Date: Thu, 15 Aug 2024 20:14:58 GMT
- Title: A controlled-squeeze gate in superconducting quantum circuits
- Authors: Nicolás F. Del Grosso, Rodrigo G. Cortiñas, Paula I. Villar, Fernando C. Lombardo, Juan Pablo Paz,
- Abstract summary: We present a method to prepare non-classical states of the electromagnetic field in a microwave resonator.
It is based on a controlled gate that applies a squeezing operation on a SQUID-terminated resonator conditioned on the state of a dispersively coupled qubit.
We explore the use of this tool to map an arbitrary qubit state into a superposition of squeezed states.
- Score: 39.58317527488534
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: We present a method to prepare non-classical states of the electromagnetic field in a microwave resonator. It is based on a controlled gate that applies a squeezing operation on a SQUID-terminated resonator conditioned on the state of a dispersively coupled qubit. This controlled-squeeze gate, when combined with Gaussian operations on the resonator, is universal. We explore the use of this tool to map an arbitrary qubit state into a superposition of squeezed states. In particular, we target a bosonic code with well-defined superparity which makes photon losses detectable by nondemolition parity measurements. We analyze the possibility of implementing this using state-of-the-art circuit QED tools and conclude that it is within reach of current technologies.
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