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We describe a coherent control technique for coupling electron spin states associated with semiconductor double-dot molecule to a microwave stripline resonator on a chip. We identify a novel regime of operation in which strong interaction…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. M. Taylor , M. D. Lukin

We investigate nonlinear effects in an electromechanical system consisting of a superconducting charge qubit coupled to transmission line resonator and a nanomechanical oscillator, which in turn is coupled to another transmission line…

Quantum Physics · Physics 2014-02-03 Eyob A. Sete , H. Eleuch

We study electron-spin-photon coupling in a single-spin double quantum dot embedded in a superconducting stripline cavity. With an external magnetic field, we show that either a spin-orbit interaction (for InAs) or an inhomogeneous magnetic…

Mesoscale and Nanoscale Physics · Physics 2012-09-05 Xuedong Hu , Yu-xi Liu , Franco Nori

We consider parametric interactions of laser pulses in a coherent macroscopic ensemble of resonant atoms, which are possible in the strong coupling regime of light-matter interaction. The spectrum condensation (lasing at collective vacuum…

Quantum Physics · Physics 2007-05-23 I. B. Mekhov , V. S. Egorov , V. N. Lebedev , P. V. Moroshkin , I. A. Chekhonin , S. N. Bagayev

Traditionally, strong-field physics explores phenomena in matter (atoms, molecules, and solids) driven by an extremely strong laser field nonperturbatively. However, even in the complete absence of an external electromagnetic field,…

Mesoscale and Nanoscale Physics · Physics 2019-03-15 Motoaki Bamba , Xinwei Li , Junichiro Kono

The energy and wave function of a harmonically confined two-electron system coupled to light is calculated by separating the wave functions of the relative and center of mass (CM) motions. The relative motion wave function has a known…

Mesoscale and Nanoscale Physics · Physics 2021-11-10 Chenhang Huang , Alexander Ahrens , Matthew Beutel , Kalman Varga

Coupling of space-separated oscillators is interesting for quantum and communication technologies. In this work, it is shown that two antiferromagnetic oscillators placed inside an electromagnetic cavity couple cooperatively to its…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 M. Białek , W. Knap , J. -Ph. Ansermet

We experimentally demonstrate the resonance fluorescence of a two-level artificial atom strongly coupled to a single-mode cavity field. The effect was theoretically predicted thirty years ago by Savage [Phys. Rev. Lett. 63, 1376 (1989)].…

Quantum Physics · Physics 2023-04-13 Z. H. Peng , D. He , Y. Zhou , J. H. Ding , J. Lu , L. Zhou , J. Q. Liao , L. M. Kuang , Yu-xi Liu , Oleg V. Astafiev , J. S. Tsai

Strong coupling between an atom and an electromagnetic resonator is an important condition in cavity quantum electrodynamics (QED). While strong coupling in various physical systems has been achieved so far, it remained elusive for single…

Quantum Physics · Physics 2020-01-22 Hiroki Takahashi , Ezra Kassa , Costas Christoforou , Matthias Keller

Light-matter interactions can occur when an ensemble of molecular resonators is placed in a confined electromagnetic field. In the strong coupling regime the rapid exchange of energy between the molecules and the electromagnetic field…

Mesoscale and Nanoscale Physics · Physics 2020-08-10 Philip A. Thomas , Wai Jue Tan , Henry A. Fernandez , William L. Barnes

Single atoms coupled to a cavity offer unique opportunities as quantum optomechanical devices because of their small mass and strong interaction with light. A particular regime of interest in optomechanics is that of "single-photon strong…

Quantum Physics · Physics 2022-04-01 Javier Argüello-Luengo , Darrick E. Chang

Cavity-electromechanical systems are extensively used for sensing and controlling the vibrations of mechanical resonators down to their quantum limit. The nonlinear radiation-pressure interaction in these systems could result in an unstable…

Quantum Physics · Physics 2024-09-02 Tanmoy Bera , Mridul Kandpal , G. S. Agarwal , Vibhor Singh

Achieving quantum-level control over electromagnetic waves, magnetisation dynamics, vibrations and heat is invaluable for many practical application and possible by exploiting the strong radiation-matter coupling. Most of the modern strong…

Other Condensed Matter · Physics 2018-11-14 Ivan S. Maksymov

The problem of coupling multiple spin ensembles through cavity photons is revisited by using PyBTM organic radicals and a high-$T_c$ superconducting coplanar resonator. An exceptionally strong coupling is obtained and up to three spin…

Mesoscale and Nanoscale Physics · Physics 2016-07-06 A. Ghirri , C. Bonizzoni , F. Troiani , N. Buccheri , L. Beverina , A. Cassinese , M. Affronte

Strong coupling is a phenomenon which occurs when the interaction between two resonance systems is so strong that the oscillatory energy exchange between them exceeds all dissipative loss channels. Each resonance can then no longer be…

The interaction between an atom and the electromagnetic field inside a cavity has played a crucial role in the historical development of our understanding of light-matter interaction and is a central part of various quantum technologies,…

Quantum Physics · Physics 2017-02-01 Fumiki Yoshihara , Tomoko Fuse , Sahel Ashhab , Kosuke Kakuyanagi , Shiro Saito , Kouichi Semba

Cavity photon resonators with ultrastrong light-matter interactions are attracting interest both in semiconductor and superconducting systems displaying the capability to manipulate the cavity quantum electrodynamic ground state with…

The effective coupling of two distant quantum dots through virtual photon exchange in a semiconductor microcavity is studied. The experimental conditions for strong coupling and its manifestation in the spectra of emission are analyzed.

Mesoscale and Nanoscale Physics · Physics 2012-11-01 Elena del Valle

We investigate the controllable generation of robust photon entanglement with a circuit cavity electromechanical system, consisting of two superconducting coplanar waveguide cavities (CPWC's) capacitively coupled by a nanoscale mechanical…

Quantum Physics · Physics 2013-10-30 Peng-Bo Li , Shao-Yan Gao , Fu-Li Li

Electron spins in solids are promising candidates for quantum memories for superconducting qubits because they can have long coherence times, large collective couplings, and many quantum bits can be encoded into the spin-waves of a single…

Mesoscale and Nanoscale Physics · Physics 2013-05-29 D. I. Schuster , A. P. Sears , E. Ginossar , L. DiCarlo , L. Frunzio , J. J. L. Morton , H. Wu , G. A. D. Briggs , R. J. Schoelkopf