6.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR336 papers
- ETH ZurichCH215 papers
- Petersburg Nuclear Physics InstituteRU204 papers
- Massachusetts Institute of TechnologyUS182 papers
- European Organization for Nuclear ResearchCH168 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR167 papers
- University of GenevaCH163 papers
- Hungarian Academy of SciencesHU159 papers
- California Institute of TechnologyUS145 papers
- Paul Scherrer InstituteCH143 papers
- University of BolognaIT143 papers
- University of MichiganUS143 papers
29 papers · 2 filters
Nuclear spin squeezing in Helium-3 by continuous quantum nondemolition measurement
Alan Serafin, Matteo Fadel, Philipp Treutlein +1
We propose a technique to control the macroscopic collective nuclear spin of a Helium-3 vapor in the quantum regime using light. The scheme relies on metastability exchange collisi…
Improved DIQKD protocols with finite-size analysis
Ernest Y. -Z. Tan, Pavel Sekatski, Jean-Daniel Bancal +4
The security of finite-length keys is essential for the implementation of device-independent quantum key distribution (DIQKD). Presently, there are several finite-size DIQKD securi…
Entanglement purification by counting and locating errors with entangling measurements
Ferran Riera Sàbat, Pavel Sekatski, Alexander Pirker +1
We consider entanglement purification protocols for multiple copies of qubit states. We use high-dimensional auxiliary entangled systems to learn about number and positions of erro…
Entanglement-assisted entanglement purification
Ferran Riera Sàbat, Pavel Sekatski, Alexander Pirker +1
The efficient generation of high-fidelity entangled states is the key element for long-distance quantum communication, quantum computation and other quantum technologies, and at th…
Self-testing two-qubit maximally entangled states from generalized CHSH tests
Xavier Valcarce, Julian Zivy, Nicolas Sangouard +1
Device-independent certification, also known as self-testing, aims at guaranteeing the proper functioning of untrusted and uncharacterized devices. For example, the quality of an u…
Excited-state quantum phase transitions
Pavel Cejnar, Pavel Stránský, Michal Macek +1
We review the effects of excited-state quantum phase transitions (ESQPTs) in interacting many-body systems with finite numbers of collective degrees of freedom. We classify typical…
Quasiclassical approach to quantum quench dynamics in the presence of an excited-state quantum phase transition
Michal Kloc, Daniel Šimsa, Filip Hanák +3
The dynamics of a quantum system following a sudden, highly non-adiabatic change of its control parameter (quantum quench) is studied with quasiclassical techniques. Recent works h…
Metrological complementarity reveals the Einstein-Podolsky-Rosen paradox
Benjamin Yadin, Matteo Fadel, Manuel Gessner
The Einstein-Podolsky-Rosen (EPR) paradox plays a fundamental role in our understanding of quantum mechanics, and is associated with the possibility of predicting the results of no…
Remote state preparation of two-component Bose-Einstein condensates
Manish Chaudhary, Matteo Fadel, Ebubechukwu O. Ilo-Okeke +3
A protocol for remote state preparation is proposed for spin ensembles, where the aim is to prepare a state with a given set of spin expectation values on a remote spin ensemble us…
Device-independent quantum key distribution from generalized CHSH inequalities
P. Sekatski, J. -D. Bancal, X. Valcarce +3
Device-independent quantum key distribution aims at providing security guarantees even when using largely uncharacterised devices. In the simplest scenario, these guarantees are de…
A bright and fast source of coherent single photons
Natasha Tomm, Alisa Javadi, Nadia O. Antoniadis +8
A single photon source is a key enabling technology in device-independent quantum communication, quantum simulation for instance boson sampling, linear optics-based and measurement…
A coherent spin-photon interface with waveguide induced cycling transitions
Martin Hayhurst Appel, Alexey Tiranov, Alisa Javadi +7
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, selec…
Bounding the fidelity of quantum many-body states from partial information
Matteo Fadel, Albert Aloy, Jordi Tura
We formulate an algorithm to lower bound the fidelity between quantum many-body states only from partial information, such as the one accessible by few-body observables. Our method…
Noisy pre-processing facilitating a photonic realisation of device-independent quantum key distribution
M. Ho, P. Sekatski, E. Y. -Z. Tan +3
Device-independent quantum key distribution provides security even when the equipment used to communicate over the quantum channel is largely uncharacterized. An experimental demon…
Setting up experimental Bell test with reinforcement learning
Alexey A. Melnikov, Pavel Sekatski, Nicolas Sangouard
Finding optical setups producing measurement results with a targeted probability distribution is hard as a priori the number of possible experimental implementations grows exponent…
Light-mediated strong coupling between a mechanical oscillator and atomic spins one meter apart
Thomas M. Karg, Baptiste Gouraud, Chun Tat Ngai +3
Engineering strong interactions between quantum systems is essential for many phenomena of quantum physics and technology. Typically, strong coupling relies on short-range forces o…
Identification of molecular quantum states using phase-sensitive forces
Kaveh Najafian, Ziv Meir, Mudit Sinhal +1
Quantum-logic techniques used to manipulate quantum systems are now increasingly being applied to molecules. Previous experiments on single trapped diatomic species have enabled st…
Heralded distribution of single-photon path entanglement
Patrik Caspar, Ephanielle Verbanis, Enky Oudot +9
We report the experimental realization of heralded distribution of single-photon path entanglement at telecommunication wavelengths in a repeater-like architecture. The entanglemen…
Relating spin squeezing to multipartite entanglement criteria for particles and modes
Matteo Fadel, Manuel Gessner
Entanglement witnesses based on first and second moments exist in the form of spin-squeezing criteria for the detection of particle entanglement from collective measurements, and i…
Noisy distributed sensing in the Bayesian regime
S. Wölk, P. Sekatski, W. Dür
We consider non-local sensing of scalar signals with specific spatial dependence in the Bayesian regime. We design schemes that allow one to achieve optimal scaling and are immune…
A differentiable programming method for quantum control
Frank Schäfer, Michal Kloc, Christoph Bruder +1
Optimal control is highly desirable in many current quantum systems, especially to realize tasks in quantum information processing. We introduce a method based on differentiable pr…
Hardware-Encoding Grid States in a Non-Reciprocal Superconducting Circuit
Martin Rymarz, Stefano Bosco, Alessandro Ciani +1
We present a circuit design composed of a non-reciprocal device and Josephson junctions whose ground space is doubly degenerate and the ground states are approximate codewords of t…
Machine learning transfer efficiencies for noisy quantum walks
Alexey A. Melnikov, Leonid E. Fedichkin, Ray-Kuang Lee +1
Quantum effects are known to provide an advantage in particle transfer across networks. In order to achieve this advantage, requirements on both a graph type and a quantum system c…
Spectral Structure and Many-Body Dynamics of Ultracold Bosons in a Double-Well
Frank Schäfer, Miguel A. Bastarrachea-Magnani, Axel U. J. Lode +2
We examine the spectral structure and many-body dynamics of two and three repulsively interacting bosons trapped in a one-dimensional double-well, for variable barrier height, inte…