Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of GothenburgSE951 papers
- Centre National de la Recherche ScientifiqueFR805 papers
- Leiden UniversityNL590 papers
- Max Planck Institute for Radio AstronomyDE405 papers
- European Southern ObservatoryCL356 papers
- Center for Astrophysics Harvard & SmithsonianUS313 papers
- Leiden Observatory304 papers
- California Institute of TechnologyUS296 papers
- National Astronomical Observatory of JapanJP280 papers
- Observatoire de ParisFR268 papers
- Stockholm UniversitySE262 papers
- Centro de AstrobiologíaES252 papers
16 papers · 2 filters
Optimal Control of Hybrid Optomechanical Systems for Generating Non-Classical States of Mechanical Motion
Ville Bergholm, Witlef Wieczorek, Thomas Schulte-Herbrueggen +1
Cavity optomechanical systems are one of the leading experimental platforms for controlling mechanical motion in the quantum regime. We exemplify that the control over cavity optom…
Nonexponential decay of a giant artificial atom
Gustav Andersson, Baladitya Suri, Lingzhen Guo +2
In quantum optics, light-matter interaction has conventionally been studied using small atoms interacting with electromagnetic fields with wavelength several orders of magnitude la…
Cavity-free vacuum-Rabi splitting in circuit quantum acoustodynamics
Andreas Ask, Maria Ekström, Per Delsing +1
Artificial atoms coupled to surface acoustic waves (SAWs) have played a crucial role in the recent development of circuit quantum acoustodynamics (cQAD). In this paper, we have inv…
PennyLane: Automatic differentiation of hybrid quantum-classical computations
Ville Bergholm, Josh Izaac, Maria Schuld +65
PennyLane is a Python 3 software framework for differentiable programming of quantum computers. The library provides a unified architecture for near-term quantum computing devices,…
Simple preparation of Bell and GHZ states using ultrastrong-coupling circuit QED
Vincenzo Macrì, Franco Nori, Anton Frisk Kockum
The ability to entangle quantum systems is crucial for many applications in quantum technology, including quantum communication and quantum computing. Here, we propose a new, simpl…
Simulations of Subatomic Many-Body Physics on a Quantum Frequency Processor
Hsuan-Hao Lu, Natalie Klco, Joseph M. Lukens +8
Simulating complex many-body quantum phenomena is a major scientific impetus behind the development of quantum computing, and a range of technologies are being explored to address…
Random coding for sharing bosonic quantum secrets
Francesco Arzani, Giulia Ferrini, Frédéric Grosshans +1
We consider a protocol for sharing quantum states using continuous variable systems. Specifically we introduce an encoding procedure where bosonic modes in arbitrary secret states…
Dissipation and Thermal Noise in Hybrid Quantum Systems in the Ultrastrong Coupling Regime
Alessio Settineri, Vincenzo Macrì, Alessandro Ridolfo +4
The interaction among the components of a hybrid quantum system is often neglected when considering the coupling of these components to an environment. However, if the interaction…
Non-hermitian Hamiltonian description for quantum plasmonics: from dissipative dressed atom picture to Fano states
H. Varguet, B. Rousseaux, D. Dzsotjan +3
We derive effective Hamiltonians for a single dipolar emitter coupled to a metal nanoparticle (MNP) with particular attention devoted to the role of losses. For small particles siz…
Probabilistic Fault-Tolerant Universal Quantum Computation and Sampling Problems in Continuous Variables
Tom Douce, Damian Markham, Elham Kashefi +2
Continuous-Variable (CV) devices are a promising platform for demonstrating large-scale quantum information protocols. In this framework, we define a general quantum computational…
Steady-state generation of Wigner negative states in 1D resonance fluorescence
Fernando Quijandría, Ingrid Strandberg, Göran Johansson
In this work we demonstrate numerically that the nonlinearity provided by a continuously driven two-level system (TLS) allows for the generation of Wigner-negative states of the el…
Period multiplication in a parametrically driven superconducting resonator
Ida-Maria Svensson, Andreas Bengtsson, Jonas Bylander +2
We report on the experimental observation of period multiplication in parametrically driven tunable superconducting resonators. We modulate the magnetic flux through a superconduct…
Observation of broadband entanglement in microwave radiation from a single time-varying boundary condition
B. H. Schneider, A. Bengtsson, I. M. Svensson +4
Entangled pairs of microwave photons are commonly produced in the narrow frequency band of a resonator, which represents a modified vacuum density of states. We use a broadband, se…
-symmetric circuit-QED
Fernando Quijandría, Uta Naether, Sahin K. Özdemir +2
The Hermiticity axiom of quantum mechanics guarantees that the energy spectrum is real and the time evolution is unitary (probability-preserving). Nevertheless, non-Hermitian but $…
Nondegenerate parametric oscillations in a tunable superconducting resonator
Andreas Bengtsson, Philip Krantz, Michaël Simoen +5
We investigate nondegenerate parametric oscillations in a multimode superconducting microwave resonator that is terminated by a SQUID. The parametric effect is achieved by modulati…
Causality in Quantum Field Theory with Classical Sources - Quantum Electrodynamics
Bo-Sture K. Skagerstam, Karl-Erik Eriksson, Per K. Rekdal
In an exact quantum-mechanical framework, we show that expectation values of the second-quantized electro-magnetic fields in the Coulomb gauge, and in the presence of classical sou…