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Engineering strong interactions between quantum systems is essential for many phenomena of quantum physics and technology. Typically, strong coupling relies on short-range forces or on placing the systems in high-quality electromagnetic…

The possibility of coherent radiation by molecular magnets is investigated. It is shown that to realize the coherent radiation, it is necessary to couple the considered sample to a resonant electric circuit. A theory for describing this…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 V. I. Yukalov , E. P. Yukalova

A recently discovered mechanism of electric dipole spin resonance, mediated by the hyperfine interaction, is investigated experimentally and theoretically. The effect is studied using a spin-selective transition in a GaAs double quantum…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 E. A. Laird , C. Barthel , E. I. Rashba , C. M. Marcus , M. P. Hanson , A. C. Gossard

Strong coupling of electromagnetic cavity fields with antiferromagnetic spin waves in hematite ($\alpha$-Fe$_2$O$_3$) was achieved above room temperature. A cube of hematite was placed in a metallic tube and transmission was measured, using…

Mesoscale and Nanoscale Physics · Physics 2021-04-14 M. Białek , J. Zhang , H. Yu , J. -Ph. Ansermet

Strong coupling between atomic ensembles and high-quality optical cavities enables collective and nonlinear phenomena that are central to cavity quantum electrodynamics (cQED). Although many experiments have been performed on this topic,…

Strong coupling between single qubits is crucial for quantum information science and quantum computation. However, it is still challenged, especially for single solid-state qubit. Here, we propose a hybrid quantum system, consisting of a…

Quantum Physics · Physics 2025-02-26 Ma-Lei Peng , Miao Tian , Xue-Chun Chen , Guo-Qiang Zhang , Hai-Chao Li , Wei Xiong

We use electrical detection, in combination with microwave transmission, to investigate both resonant and non-resonant magnon-photon coupling at room temperature. Spin pumping in a dynamically coupled magnon-photon system is found to be…

Materials Science · Physics 2015-06-04 Lihui Bai , M. Harder , Y. P. Chen , X. Fan , J. Q. Xiao , C. -M. Hu

The effects associated with exciton Bose condensate formation in strongly correlated spin crossover systems are considered within the effective Hamiltonian obtained from the two-orbital Hubbard-Kanamori model. The collective excitations…

Strongly Correlated Electrons · Physics 2022-12-13 Yuri. S. Orlov , Sergey. V. Nikolaev

Recent research on hybrid magnonics has been restricted by the long magnon wavelengths of the ferromagnetic resonance modes. We present an experiment on the hybridization of 250-nm wavelength magnons with microwave photons in a multimode…

The full coherent control of hybridized systems such as strongly coupled cavity photon-magnon states is a crucial step to enable future information processing technologies. Thus, it is particularly interesting to engineer deliberate control…

Mesoscale and Nanoscale Physics · Physics 2020-02-19 Isabella Boventer , Christine Dörflinger , Tim Wolz , Rair Macêdo , Romain Lebrun , Mathias Kläui , Martin Weides

In a full-scale quantum computer with a fault-tolerant architecture, having scalable, long-range interaction between qubits is expected to be a highly valuable resource. One promising method of achieving this is through the light-matter…

Combining highly coherent spin control with efficient light-matter coupling offers great opportunities for quantum communication and networks, as well as quantum computing. Optically active semiconductor quantum dots have unparalleled…

We describe the design and characterization of superconducting coplanar waveguide cavities tailored to facilitate strong coupling between superconducting quantum circuits and single trapped Rydberg atoms. For initial superconductor-atom…

Superconductivity · Physics 2024-06-12 M. A. Beck , J. A. Isaacs , D. Booth , J. D. Pritchard , M. Saffman , R. McDermott

High frequency mechanical resonators subjected to low thermal phonon occupancy are easier to be prepared to the ground state by direct cryogenic cooling. Their extreme stiffness, however, poses a significant challenge for external…

Optics · Physics 2016-09-21 Xu Han , Chang-Ling Zou , Hong X. Tang

We discuss the observability of strong coupling between single photons in semiconductor microcavities coupled by a chi(2) nonlinearity. We present two schemes and analyze the feasibility of their practical implementation in three systems:…

Quantum Physics · Physics 2009-11-13 William T. M. Irvine , Kevin Hennessy , Dirk Bouwmeester

The present work focuses on the strong/weak interaction of many-body spin-systems with a cavity mode. It introduces the necessity of redefining the physical conditions determining the strong/weak coupling regime in those systems. In more…

Quantum Physics · Physics 2026-04-23 Roberto Grimaudo , Sagnik Chakraborty , Rosario Lo Franco , Giuseppe Falci

From fundamental discovery to practical application, advances in the optical and quantum sciences rely upon precise control of light-matter interactions. Systems of coupled optical cavities are ubiquitous in these efforts, yet design and…

Optics · Physics 2020-04-22 Kevin C. Smith , Yueyang Chen , Arka Majumdar , David J. Masiello

A recent analysis of optical conductivity data which has provided strong evidence for coupling of the charge carriers to the 41 meV spin resonance, seen in the superconducting state of optimally doped Y123, is extended to other systems. We…

Superconductivity · Physics 2009-10-31 E. Schachinger , J. P. Carbotte

Using an extended Tavis-Cummings model, we study the effect of the spin-orbit coupling between the singlet and the triplet molecular excitons in organic microcavities in the strong coupling regime. The model is solved in the single…

Quantum Gases · Physics 2022-10-11 M. Ahsan Zeb , Shoaib Masood

Entanglement is the quintessential quantum phenomenon and a necessary ingredient in most emerging quantum technologies, including quantum repeaters, quantum information processing (QIP) and the strongest forms of quantum cryptography. Spin…