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We present a new model for the study of spin-orbit coupling in interacting quasi-one-dimensional systems and solve it exactly to find the spectral properties of such systems. We show that the combination of spin-orbit coupling and…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. V. Moroz , K. V. Samokhin , C. H. W. Barnes

We present two novel schemes to generate photon polarization entanglement via single electron spins confined in charged quantum dots inside microcavities. One scheme is via entangled remote electron spins followed by negatively-charged…

Quantum Physics · Physics 2010-05-31 C. Y. Hu , W. J. Munro , J. G. Rarity

In the weak ferromagnetic MnCO$_3$ system, a low-frequency collective spin excitation (magnon) is the hybridized oscillation of nuclear and electron spins coupled through the hyperfine interaction. By using a split-ring resonator, we…

Mesoscale and Nanoscale Physics · Physics 2015-06-05 Leonid V. Abdurakhimov , Yuriy M. Bunkov , Denis Konstantinov

The recent realization of a coherent interface between a single electron in a silicon quantum dot and a single photon trapped in a superconducting cavity opens the way for implementing photon-mediated two-qubit entangling gates. In order to…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 M. Benito , J. R. Petta , Guido Burkard

Solid-state quantum dots are promising candidates for efficient light-matter interfaces connecting internal spin degrees of freedom to the states of emitted photons. However, selection rules prevent the combination of efficient spin control…

We describe an approach to electrically control the strong interaction between a single electron spin and the vibrational motion of a suspended carbon nanotube resonator. The strength of the deflection-induced spin-phonon coupling is…

Quantum Physics · Physics 2015-10-20 Fang-Yu Hong , Jing-Li Fu , Yan Wu , Zhi-Yan Zhu

Ultrastrong light-matter coupling opens exciting possibilities to generate squeezed quantum states and entanglement. Here we propose a way to achieve this regime in superconducting hybrid nanostructures with ferromagnetic interlayers.…

Mesoscale and Nanoscale Physics · Physics 2023-06-07 Mikhail Silaev

Coherent conversion of microwave and optical photons in the single-quantum level can significantly expand our ability to process signals in various fields. Efficient up-conversion of a feeble signal in the microwave domain to the optical…

Spin-based quantum photonics promise to realize distributed quantum computing and quantum networks. The performance depends on efficient entanglement distribution, where the efficiency can be boosted by means of cavity quantum…

We propose to couple single atomic qubits to photons incident on a cavity containing an atomic ensemble of a different species that mediates the coupling via Rydberg interactions. Subject to a classical field and the cavity field, the…

Quantum Physics · Physics 2016-11-18 Andrew C. J. Wade , Marco Mattioli , Klaus Molmer

Strong coupling in cavity-magnon systems has shown great potential for use in spintronics and information processing technologies due to the low damping rates and long coherence times. Although such systems are conceptually similar to those…

Mesoscale and Nanoscale Physics · Physics 2017-03-22 Paul Hyde , Lihui Bai , Michael Harder , Christopher Dyck , Can-Ming Hu

Magnon-photon coupling in antiferromagnets has many attractive features that do not exist in ferro- or ferrimagnets. We show quantum-mechanically that, in the absence of an external field, one of the two degenerated spin wave bands couples…

Mesoscale and Nanoscale Physics · Physics 2018-08-01 H. Y. Yuan , X. R. Wang

Switching of a single photon interacting with two {\Lambda}-type three-level quantum dots embedded in cavities coupled to one-dimensional waveguide is investigated theoretically via the real-space approach. We demonstrated that switching of…

Optics · Physics 2015-07-24 Nam-Chol Kim , Myong-Chol Ko

A scalable optical quantum information processor is likely to be a waveguide circuit with integrated sources, detectors, and either deterministic quantum-logic or quantum memory elements. With microsecond coherence times, ultrafast coherent…

We study the generation of strongly correlated photons by coupling an atom to photonic quantum fields in a one-dimensional waveguide. Specifically, we consider a three-level or four-level system for the atom. Photon-photon bound states…

Quantum Physics · Physics 2012-06-26 Huaixiu Zheng , Daniel J. Gauthier , Harold U. Baranger

We present and analyze a method where parametric (two-photon) driving of a cavity is used to exponentially enhance the light-matter coupling in a generic cavity QED setup, with time-dependent control. Our method allows one to enhance…

Quantum Physics · Physics 2018-03-07 C. Leroux , L. C. G. Govia , A. A. Clerk

We review progress on the use of electron spins to store and process quantum information, with particular focus on the ability of the electron spin to interact with multiple quantum degrees of freedom. We examine the benefits of hybrid…

Quantum Physics · Physics 2011-03-03 John J. L. Morton , Brendon W. Lovett

Coupling a single spin to high-frequency mechanical motion is a fundamental bottleneck of applications such as quantum sensing, intermediate and long-distance spin-spin coupling, and classical and quantum information processing. Previous…

It has been shown elsewhere that two spatially separated atoms can jointly absorb one photon, whose frequency is equal to the sum of the transition frequencies of the two atoms. We describe this process in the presence of an ensemble of…

Quantum Physics · Physics 2020-05-13 Vincenzo Macrí , Franco Nori , Salvatore Savasta , David Zueco

We propose a novel hybrid quantum gate between an atom and a microwave photon in a superconducting coplanar waveguide cavity by exploiting the strong resonant microwave coupling between adjacent Rydberg states. Using experimentally…

Quantum Physics · Physics 2015-06-17 J. D. Pritchard , J. A. Isaacs , M. A. Beck , R. McDermott , M. Saffman