Circuit quantum electrodynamics

<p>Circuit quantum electrodynamics (circuit QED) provides a means of studying the fundamental interaction between light and matter (<a href="/facts/Quantum_optics/xcvuB9n9">quantum optics</a>). As in the field of <a href="/facts/Cavity_quantum_electrodynamics/nv9affqB">cavity quantum electrodynamics</a>, a single photon within a single mode <a href="/facts/Optical_cavity/BITPG3ga">cavity</a> coherently couples to a quantum object (atom). In contrast to cavity QED, the photon is stored in a one-dimensional on-chip resonator and the quantum object is no natural atom but an artificial one. These <a href="/facts/Artificial_atom/K5Ytv8Yw">artificial atoms</a> usually are <a href="/facts/Mesoscopic_physics/QKWer6fG">mesoscopic</a> devices which exhibit an atom-like energy spectrum.  The field of circuit QED is a prominent example for <a href="/facts/Quantum_information_science/JDuxpHp8">quantum information processing</a> and a promising candidate for future <a href="/facts/Quantum_computer/nbbcgmvq">quantum computation</a>.
</p><p>In the late 2010s decade, experiments involving cQED in 3 dimensions have demonstrated deterministic <a href="/facts/Gate_teleportation/2lWvQA4F">gate teleportation</a> and other operations on multiple <a href="/facts/Qubit/WveeEubw">qubits</a>.
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Circuit quantum electrodynamics open-in-new

Circuit quantum electrodynamics