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Questions tagged [circuit-qed]

Circuit quantum electrodynamics focuses on the interaction of small superconducting circuits, tailored to behave as two-level quantum systems, with a single mode of the electromagnetic field sustained by a superconducting resonator. It thus allows the study and control of fundamental light-matter interaction (quantum optics) and plays an essential role in all current approaches to quantum information processing with superconducting circuits.

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Circuit quantization procedure

In circuit QED, we construct the hamiltonian of a circuit following Devoret's procedure. We start from a classical treatment, in which we impose Kirchhoff's voltage laws on fundamental loops and ...
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Learning sources on cavity QED

Recently, I have been studying lecture notes on Circuit QED by Steve Girvin to learn about superconducting circuits. I am currently in the chapter about cavity QED. The description in the notes are ...
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Suggestion on reading resources on superconducting quantum computing

I am a physics student who works with NMR spin-based quantum computing, now branching into superconductor-based qubits. So I am reading lecture notes by Nathan K Langford and Steve Girvin. I can ...
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Native Qubit-Qubit-Resonator Interaction

Recently I've been working on a setup with two qubits and a resonator. And usually people consider the following scenarios: Qubit-Qubit Interaction something like $\hat{\sigma}_X^{(a)}\hat{\sigma}_X^{...
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Meaning of Continuous Charge in the Inductively Shunted Cooper Pair Box [closed]

In the Cooper Pair box, the conjugate momentum $\hat{n}$ of the reduced superconducting phase variable $\hat{\varphi}$ takes only discrete, integer values due to the $2\pi$ periodicity of the phase. ...
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Solution for the "Input and Output theory" for circuit/cavity-QED Quantum Architecture [closed]

This question consists of the basic calculations which are often referred to as "trivial" in most references in circuit-QED. However, are not so trivial for anyone who starts fresh into the ...