3.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Quantum Optics and Quantum Information InnsbruckAT973 papers
- Universität InnsbruckAT944 papers
- Institute of High Energy PhysicsCN842 papers
- University of ViennaAT835 papers
- Centre National de la Recherche ScientifiqueFR824 papers
- Space Research InstituteRU796 papers
- European Organization for Nuclear ResearchCH470 papers
- ETH ZurichCH461 papers
- Korea UniversityKR441 papers
- National Taiwan UniversityTW436 papers
- Panjab UniversityIN432 papers
- Sungkyunkwan UniversityKR432 papers
67 papers · 2 filters
Quantum Communication Uplink to a 3U CubeSat: Feasibility & Design
Sebastian Philipp Neumann, Siddarth Koduru Joshi, Matthias Fink +8
Satellites are the efficient way to achieve global scale quantum communication (Q.Com) because unavoidable losses restrict fiber based Q.Com to a few hundred kilometers. We demonst…
Quantum mechanics and the covariance of physical laws in quantum reference frames
Flaminia Giacomini, Esteban Castro-Ruiz, Časlav Brukner
In physics, every observation is made with respect to a frame of reference. Although reference frames are usually not considered as degrees of freedom, in all practical situations…
Experimental entanglement of temporal order
Giulia Rubino, Lee A. Rozema, Francesco Massa +4
The study of causal relations has recently been applied to the quantum realm, leading to the discovery that not all physical processes have a definite causal structure. While indef…
Gouy Phase Radial Mode Sorter for Light: Concepts and Experiments
Xuemei Gu, Mario Krenn, Manuel Erhard +1
We present an in principle lossless sorter for radial modes of light, using accumulated Gouy phases. The experimental setups have been found by a computer algorithm, and can be int…
Simulating indefinite causal order with Rindler observers
Aleksandra Dimić, Marko Milivojević, Dragoljub Gočanin +2
Realization of indefinite causal order (ICO), a theoretical possibility that even causal relations between physical events can be subjected to quantum superposition, apart from its…
Kolmogorov extension theorem for (quantum) causal modelling and general probabilistic theories
Simon Milz, Fattah Sakuldee, Felix A. Pollock +1
In classical physics, the Kolmogorov extension theorem lays the foundation for the theory of stochastic processes. It has been known for a long time that, in its original form, thi…
Repulsive vacuum-induced forces on a magnetic particle
Kanupriya Sinha
We study the possibility of obtaining a repulsive vacuum-induced force for a magnetic point particle near a surface. Considering the toy model of a particle with an electric-dipole…
Causal Asymmetry in a Quantum World
Jayne Thompson, Andrew J. P. Garner, John R. Mahoney +3
Causal asymmetry is one of the great surprises in predictive modelling: the memory required to predict the future differs from the memory required to retrodict the past. There is a…
Interference of single photons emitted by entangled atoms in free space
Gabriel Araneda, Daniel B. Higginbottom, Lukáš Slodička +2
The generation and manipulation of entanglement between isolated particles has precipitated rapid progress in quantum information processing. Entanglement is also known to play an…
Law without law: from observer states to physics via algorithmic information theory
Markus P. Mueller
According to our current conception of physics, any valid physical theory is supposed to describe the objective evolution of a unique external world. However, this condition is cha…
Structure of temporal correlations of a qubit
Jannik Hoffmann, Cornelia Spee, Otfried Gühne +1
In quantum mechanics, spatial correlations arising from measurements at separated particles are well studied. This is not the case, however, for the temporal correlations arising f…
Observation of Entangled States of a Fully Controlled 20-Qubit System
Nicolai Friis, Oliver Marty, Christine Maier +8
We generate and characterise entangled states of a register of 20 individually controlled qubits, where each qubit is encoded into the electronic state of a trapped atomic ion. Ent…
Unifying paradigms of quantum refrigeration: fundamental limits of cooling and associated work costs
Fabien Clivaz, Ralph Silva, Géraldine Haack +3
In classical thermodynamics the work cost of control can typically be neglected. On the contrary, in quantum thermodynamics the cost of control constitutes a fundamental contributi…
Trapped-ion quantum simulation of excitation transport: disordered, noisy, and long-range connected quantum networks
Nils Trautmann, Philipp Hauke
The transport of excitations governs fundamental properties of matter. Particularly rich physics emerges in the interplay between disorder and environmental noise, even in small sy…
Dynamics of quantum causal structures
Esteban Castro-Ruiz, Flaminia Giacomini, Časlav Brukner
It was recently suggested that causal structures are both dynamical, because of general relativity, and indefinite, due to quantum theory. The process matrix formalism furnishes a…
Monogamy of correlations and entropy inequalities in the Bloch picture
Paul Appel, Marcus Huber, Claude Klöckl
We investigate monogamy of correlations and entropy inequalities in the Bloch representation. Here, both can be understood as direct relations between different correlation tensor…
Resetting uncontrolled quantum systems
Miguel Navascues
We consider a scenario where we wish to bring a closed system of known Hilbert space dimension (the target), subject to an unknown Hamiltonian evolution, back to its quantum…
Nonclassicality of induced coherence without induced emission
M. Lahiri, A. Hochrainer, R. Lapkiewicz +2
Interference of two beams produced at separate biphoton sources was first observed more than two decades ago. The phenomenon, often called "induced coherence without induced emissi…
Landauer's formula breakdown for radiative heat transfer and non-equilibrium Casimir forces
Adrián E. Rubio López, Pablo M. Poggi, Fernando C. Lombardo +1
In this work we analyze the incidence of the plates' thickness on the Casimir force and radiative heat transfer for a configuration of parallel plates in a non-equilibrium scenario…
Measurements in two bases are sufficient for certifying high-dimensional entanglement
Jessica Bavaresco, Natalia Herrera Valencia, Claude Klöckl +5
High-dimensional encoding of quantum information provides a promising method of transcending current limitations in quantum communication. One of the central challenges in the purs…
Rényi Entropies from Random Quenches in Atomic Hubbard and Spin Models
Andreas Elben, Benoît Vermersch, Marcello Dalmonte +2
We present a scheme for measuring Rényi entropies in generic atomic Hubbard and spin models using single copies of a quantum state and for partitions in arbitrary spatial dimension…
Theory of a Quantum Scanning Microscope for Cold Atoms
Dayou Yang, Catherine Laflamme, Denis Vasilyev +2
We propose and analyze a scanning microscope to monitor `live' the quantum dynamics of cold atoms in a Cavity QED setup. The microscope measures the atomic density with subwaveleng…
Layered Quantum Key Distribution
Matej Pivoluska, Marcus Huber, Mehul Malik
We introduce a family of QKD protocols for distributing shared random keys within a network of users. The advantage of these protocols is that any possible key structure needed…
Twisted Photons: New Quantum Perspectives in High Dimensions
Manuel Erhard, Robert Fickler, Mario Krenn +1
Quantum information science and quantum information technology have seen a virtual explosion world-wide. It is all based on the observation that fundamental quantum phenomena on th…