Long-distance entanglement of spin qubits via ferromagnet

L Trifunovic, FL Pedrocchi, D Loss - Physical review X, 2013 - APS
We propose a mechanism of coherent coupling between distant spin qubits interacting
dipolarly with a ferromagnet. We derive an effective two-spin interaction Hamiltonian and …

Entanglement-based single-shot detection of a single magnon with a superconducting qubit

D Lachance-Quirion, SP Wolski, Y Tabuchi, S Kono… - Science, 2020 - science.org
The recent development of hybrid systems based on superconducting circuits provides the
possibility of engineering quantum sensors that exploit different degrees of freedom …

Pure dephasing of magnonic quantum states

HY Yuan, WP Sterk, A Kamra, RA Duine - Physical Review B, 2022 - APS
For a wide range of nonclassical magnonic states that have been proposed and
demonstrated recently, a new time scale besides the magnon lifetime—the magnon …

Magnons at low excitations: Observation of incoherent coupling to a bath of two-level systems

M Pfirrmann, I Boventer, A Schneider, T Wolz… - Physical Review …, 2019 - APS
Collective magnetic excitation modes, magnons, can be coherently coupled to microwave
photons in the single excitation limit. This allows for access to quantum properties of …

Hybrid quantum systems based on magnonics

D Lachance-Quirion, Y Tabuchi, A Gloppe… - Applied Physics …, 2019 - iopscience.iop.org
Engineered quantum systems enabling novel capabilities for computation and sensing have
blossomed in the last decade. Architectures benefiting from combining complementary …

Entangling ferrimagnetic magnons with an atomic ensemble via optomagnomechanics

ZY Fan, H Qian, X Zuo, J Li - Physical Review A, 2023 - APS
We show how to prepare macroscopic entanglement between an atomic ensemble and a
large number of magnons in a ferrimagnetic yttrium-iron-garnet crystal. Specifically, we …

Quantum correlation in disordered spin systems: Applications to magnetic sensing

P Cappellaro, MD Lukin - Physical Review A—Atomic, Molecular, and Optical …, 2009 - APS
We propose a strategy to generate a many-body entangled state in a collection of randomly
placed, dipolarly coupled electronic spins in the solid state. By using coherent control to …

Level attraction due to dissipative magnon-photon coupling

M Harder, Y Yang, BM Yao, CH Yu, JW Rao, YS Gui… - Physical review …, 2018 - APS
We report dissipative magnon-photon coupling caused by the cavity Lenz effect, where the
magnons in a magnet induce a rf current in the cavity, leading to a cavity backaction that …

Entanglement between distant macroscopic mechanical and spin systems

RA Thomas, M Parniak, C Østfeldt, CB Møller… - Nature Physics, 2021 - nature.com
Entanglement is an essential property of multipartite quantum systems, characterized by the
inseparability of quantum states of objects regardless of their spatial separation. Generation …

Experimental localisation of quantum entanglement through monitored classical mediator

S Pal, P Batra, T Krisnanda, T Paterek, TS Mahesh - Quantum, 2021 - quantum-journal.org
Quantum entanglement is a form of correlation between quantum particles that cannot be
increased via local operations and classical communication. It has therefore been proposed …