475 citations · 2.6k across the 48 of their papers we have counts for
46 papers
Chiral magnons for spin-qubit state transfer
Martijn Dols, Carlos Gonzalez-Ballestero, Mikhail Cherkasskii +3
We propose a protocol where chiral magnons mediate a state transfer between two distant spin qubits. The protocol is implemented by varying the coupling between the spin qubits and…
Remote entanglement of massive oscillators via wire-mediated Coulomb interaction
Lorenzo Papa, Onur Hosten, Carlos Gonzalez-Ballestero
We propose a method to enhance Coulomb interaction between charged macroscopic mechanical oscillators by placing a conducting structure in their vicinity. We derive the effective m…
Engineering recoil heating in coherent-scattering levitated optomechanics
Maksim Lednev, Uroš Delić, Johannes Feist +1
Recoil heating from photon scattering is a fundamental source of decoherence in optical trapping, severely limiting the preparation of nonclassical motional states. In cavity setup…
Quantum State Preparation of Ferromagnetic Magnons by Parametric Driving
Monika E. Mycroft, Rostyslav O. Serha, Andrii V. Chumak +1
We propose a method to prepare and certify Gaussian quantum states of the ferromagnetic resonance spin-wave modes in ferromagnets using a longitudinal drive. Contrary to quantum op…
Passive quantum state transfer in a dispersion-engineered waveguide
Zeyu Kuang, Oliver Diekmann, Lorenz Fischer +2
High-fidelity state transfer is fundamentally limited by time-reversal symmetry: one qubit emits a photon with a certain temporal pulse shape, whereas a second qubit requires the t…
Harmonic and Subharmonic Magnon Generation in a Surface Acoustic Wave Resonator
Yunyoung Hwang, Liyang Liao, Jorge Puebla +6
We experimentally observe the generation of magnon harmonics and subharmonics in an on-chip surface acoustic wave resonator incorporating a thin CoFeB film, us…
Classical and quantum theory of magnonic and magnetoelastic nonlinear dynamics in continuum geometries
Marco Brühlmann, Yunyoung Hwang, Jorge Puebla +1
We provide a theory of spin and acoustic wave coupled nonlinear dynamics in continuum systems. Combining the Landau-Lifshitz-Gilbert equations with the magnetoelastic Hamiltonian,…
Steady-state entanglement of spin qubits mediated by nonreciprocal and chiral magnons
Martijn Dols, Mikhail Cherkasskii, Victor A. S. V. Bittencourt +3
We propose a hybrid quantum system in which a magnet supporting non-reciprocal magnons, chiral magnons, or both mediates the dissipative and unidirectional coupling of spin qubits.…
Coupling molecular spin qubits with 2D magnets for coherent magnon manipulation
Sourav Dey, Gonzalo Rivero-Carracedo, Andrei Shumilin +2
Magnonics is an emerging field widely considered as a paradigm shift in information technology that uses spin waves for data storage, processing and transmission. However, the cohe…
High-purity quantum optomechanics at room temperature
Lorenzo Dania, Oscar Schmitt Kremer, Johannes Piotrowski +6
Exploiting quantum effects of mechanical motion, such as backaction evading measurements or squeezing, requires preparation of the oscillator in a high-purity state. The largest st…
Motional entanglement of remote optically levitated nanoparticles
Nicola Carlon Zambon, Massimiliano Rossi, Martin Frimmer +4
We show how to entangle the motion of optically levitated nanoparticles in distant optical tweezers. The scheme consists in coupling the inelastically scattered light of each parti…
Collectively enhanced ground-state cooling in subwavelength atomic arrays
Oriol Rubies-Bigorda, Raphael Holzinger, Ana Asenjo-Garcia +6
Subwavelength atomic arrays feature strong light-induced dipole-dipole interactions, resulting in subradiant collective resonances characterized by narrowed linewidths. In this wor…
Magnetic anisotropy and GGG substrate stray field in YIG films down to millikelvin temperatures
Rostyslav O. Serha, Andrey A. Voronov, David Schmoll +17
Quantum magnonics investigates the quantum-mechanical properties of magnons such as quantum coherence or entanglement for solid-state quantum information technologies at the nanosc…
Strongly Coupled Spin Waves and Surface Acoustic Waves at Room Temperature
Yunyoung Hwang, Jorge Puebla, Kouta Kondou +8
Here, we report the observation of strong coupling between magnons and surface acoustic wave (SAW) phonons in a thin CoFeB film constructed in an on-chip SAW resonator by analyzing…
Cavity-mediated long-range interactions in levitated optomechanics
Jayadev Vijayan, Johannes Piotrowski, Carlos Gonzalez-Ballestero +3
The ability to engineer cavity-mediated interactions has emerged as a powerful tool for the generation of non-local correlations and the investigation of non-equilibrium phenomena…
Numerical Simulation of Large-Scale Nonlinear Open Quantum Mechanics
Marc Roda-Llordes, Davide Candoli, Piotr T. Grochowski +5
We introduce a numerical method to simulate nonlinear open quantum dynamics of a particle in situations where its state undergoes significant expansion in phase space while generat…
Quantum theory of light interaction with a Lorenz-Mie particle: Optical detection and three-dimensional ground-state cooling
Patrick Maurer, Carlos Gonzalez-Ballestero, Oriol Romero-Isart
We analyze theoretically the motional quantum dynamics of a levitated dielectric sphere interacting with the quantum electromagnetic field beyond the point-dipole approximation. To…
Simultaneous ground-state cooling of two mechanical modes of a levitated nanoparticle
Johannes Piotrowski, Dominik Windey, Jayadev Vijayan +7
The quantum ground state of a massive mechanical system is a steppingstone for investigating macroscopic quantum states and building high fidelity sensors. With the recent achievem…
Generation of Spin-Wave Pulses by Inverse Design
Silvia Casulleras, Sebastian Knauer, Qi Wang +3
The development of fast magnonic information processing nanodevices requires operating with short spin-wave pulses, but, the shorter the pulses, the more affected they are by infor…
Interaction Between an Optically Levitated Nanoparticle and Its Thermal Image: Internal Thermometry via Displacement Sensing
Thomas Agrenius, Carlos Gonzalez-Ballestero, Patrick Maurer +1
We propose and theoretically analyze an experiment where displacement sensing of an optically levitated nanoparticle in front of a surface can be used to measure the induced dipole…
Suppressing Recoil Heating in Levitated Optomechanics using Squeezed Light
C. Gonzalez-Ballestero, J. A. Zielińska, M. Rossi +5
We theoretically show that laser recoil heating in free-space levitated optomechanics can be arbitrarily suppressed by shining squeezed light onto an optically trapped nanoparticle…
Mechanical squeezing via unstable dynamics in a microcavity
Katja Kustura, Carlos Gonzalez-Ballestero, Andrés de los Ríos Sommer +3
We theoretically show that strong mechanical quantum squeezing in a linear optomechanical system can be rapidly generated through the dynamical instability reached in the far red-d…
Levitodynamics: Levitation and control of microscopic objects in vacuum
C. Gonzalez-Ballestero, M. Aspelmeyer, L. Novotny +2
The control of levitated nano- and micro-objects in vacuum is of considerable interest, capitalizing on the scientific achievements in the fields of atomic physics, control theory…
Roadmap on Spin-Wave Computing
A. V. Chumak, P. Kabos, M. Wu +113
Magnonics is a field of science that addresses the physical properties of spin waves and utilizes them for data processing. Scalability down to atomic dimensions, operations in the…