Circuit quantum electrodynamics

By Lev S. Bishop. 2010

1,557 citations recorded by the source corpus.

Circuit Quantum Electrodynamics (cQED), the study of the interaction between superconducting circuits behaving as artificial atoms and 1-dimensional transmission-line resonators, has shown much promise for quantum information processing tasks. For the purposes of quantum computing it is usual to approximate the artificial atoms as 2-level qubits, and much effort has been expended on attempts to isolate these qubits from the environment and to invent ever more sophisticated control and measurement schemes. Rather than focussing on these technological aspects of the field, this thesis investigates the opportunities for using these carefully engineered systems for answering questions of fundamental physics.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/81780ba3427b0f4ba65748f8a1409d695756eda3

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In Atomic and Molecular Physics, and Optics

Citations in the corpus

Quantum optimal control in quantum technologies. Strategic report on current status, visions and goals for research in Europe (2022, background): “The theoretical description of superconducting ciruits resembles that of cavity quantum electrodynamics at optical frequencies [72].”
Harnessing the Power of the Second Quantum Revolution (2020, background): “The ability to control individual quanta of ﬁelds and matter [26,27] required new ground-breaking experimental tools such as laser cooling and trapping [28], nonclassical light sources such as squeezed light [29] and entangled photons [30], and cavity QED [31–33]–circuit QED [34].”
Low-Disorder Microwave Cavity Lattices for Quantum Simulation with Photons (2012, methodology): “A more detailed discussion of this fabrication process can be found in [91].”
Entanglement and Charge-Sharpening Transitions in U(1) Symmetric Monitored Quantum Circuits (2021, background): “The d > 1 model is perhaps less natural experimentally, but could be realized in circuit quantum electrodynamics setups [57] in which superconducting transmon qubits are coupled to multilevel superconducting cavities (qudits), or by blocking multiple qubits together (e.”
Fast universal control of an oscillator with weak dispersive coupling to a qubit (2021, methodology): “Given a set of generating Hamiltonians {A, B}, the two identities, namely, e−iAδte−iBδteiAδteiBδt = e[A,B]δt2 +O(δt3), (10) eiAδt/2eiBδt/2eiBδt/2eiAδt = ei(A+B)δt +O(δt3), (11) can be used to generate the action of the Hamiltonian –i[A, B] and the Hamiltonian A + B in the limit δt→0 (ref.”
Circuit quantum electrodynamics (2020, background): “be referred to as quton and phobit (Schuster, 2007).”
Quantum computing with neutral atoms (2020, background): “Such realizations have also been proposed with superconducting qubits that are used as resources (ancilla) to perform photonic gates in the microwave frequency range [98, 99, 100].”