Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics

By Andreas Wallraff, David I. Schuster, Alexandre Blais, Luigi Frunzio, Ren-Shou Huang, J. Majer, Shiu Kumar, Steven M. Girvin, Robert J. Schoelkopf. Nature, 2004

2,847 citations recorded by the source corpus.

The interaction of matter and light is one of the fundamental processes occurring in nature, and its most elementary form is realized when a single atom interacts with a single photon. Reaching this regime has been a major focus of research in atomic physics and quantum optics for several decades and has generated the field of cavity quantum electrodynamics. Here we perform an experiment in which a superconducting two-level system, playing the role of an artificial atom, is coupled to an on-chip cavity consisting of a superconducting transmission line resonator. We show that the strong coupling regime can be attained in a solid-state system, and we experimentally observe the coherent interaction of a superconducting two-level system with a single microwave photon. The concept of circuit quantum electrodynamics opens many new possibilities for studying the strong interaction of light and matter. This system can also be exploited for quantum information processing and quantum communication and may lead to new approaches for single photon generation and detection.

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

View Paper: https://www.semanticscholar.org/paper/9986736b62b6713194a580a6729405cfaa2d8814

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Citations in the corpus

Quantum Simulation Of The Quantum Rabi Model In A Trapped Ion (2017, background): “The JCM is an analytically solvable model that has been studied in cavity quantum electrodynamics(CQED) [4– 6], atomic physics [7], quantum dots [8], circuit quantum electrodynamics (cQED) [9, 10] and trapped ions [11– 14], among other quantum platforms.”
Single-shot qubit readout in circuit quantum electrodynamics (2009, methodology): “1: the transmon [4, 5] of frequency f01 tunable with a magnetic flux φ is coupled with a coupling constant g = 44±3MHz to the non-linear CPWR of fundamental frequency fC = 6.4535GHz, quality factor Q0 = 685 ± 15 and Josephson junction critical current IC = 0.72± 0.04 µA.”
Observation of a Dissipation-Induced Classical to Quantum Transition (2013, background): “With the rapid technological advances in solidstate quantum optics [8,9], it is now becoming possible to experimentally study strongly correlated photons, and to build model systems whose open nature gives rise to rich emergent behavior.”
Hybrid quantum circuits: Superconducting circuits interacting with other quantum systems (2012, background): “3(b)] have been realized in several experiments (Hofheinz et al., 2009, 2008; Sillanpää et al., 2007; Wallraff et al., 2004).”