Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR238 papers
- Helmholtz-Zentrum Berlin für Materialien und EnergieDE229 papers
- Technische Universität BerlinDE205 papers
- Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)DE122 papers
- University of CambridgeGB113 papers
- Humboldt-Universität zu BerlinDE110 papers
- ETH ZurichCH105 papers
- Zuse Institute BerlinDE105 papers
- University of GenevaCH95 papers
- Sorbonne UniversitéFR94 papers
- Leiden UniversityNL91 papers
- Princeton UniversityUS90 papers
29 papers · 2 filters
Finite-size effects in continuous-variable QKD with Gaussian post-selection
Nedasadat Hosseinidehaj, Andrew M. Lance, Thomas Symul +2
In a continuous-variable quantum key distribution (CV-QKD) protocol, which is based on heterodyne detection at the receiver, the application of a noiseless linear amplifier (NLA) o…
Quantum advantage from energy measurements of many-body quantum systems
Leonardo Novo, Juani Bermejo-Vega, Raúl García-Patrón
The problem of sampling outputs of quantum circuits has been proposed as a candidate for demonstrating a quantum computational advantage (sometimes referred to as quantum "supremac…
Bounding the resources for thermalizing many-body localized systems
Carlo Sparaciari, Marcel Goihl, Paul Boes +2
Understanding under which conditions physical systems thermalize is a long-standing question in many-body physics. While generic quantum systems thermalize, there are known instanc…
Stationary optomechanical entanglement between a mechanical oscillator and its measurement apparatus
C. Gut, K. Winkler, J. Hoelscher-Obermaier +9
We provide an argument to infer stationary entanglement between light and a mechanical oscillator based on continuous measurement of light only. We propose an experimentally realiz…
Cooling to absolute zero: The unattainability principle
Nahuel Freitas, Rodrigo Gallego, Lluís Masanes +1
The unattainability principle (UP) is an operational formulation of the third law of thermodynamics stating the impossibility to bring a system to its ground state in finite time.…
Thermodynamic Implementations of Quantum Processes
Philippe Faist, Mario Berta, Fernando G. S. L. Brandao
Recent understanding of the thermodynamics of small-scale systems have enabled the characterization of the thermodynamic requirements of implementing quantum processes for fixed in…
Quantum certification and benchmarking
J. Eisert, D. Hangleiter, N. Walk +5
Concomitant with the rapid development of quantum technologies, challenging demands arise concerning the certification and characterization of devices. The promises of the field ca…
Stochastic gradient descent for hybrid quantum-classical optimization
Ryan Sweke, Frederik Wilde, Johannes Meyer +4
Within the context of hybrid quantum-classical optimization, gradient descent based optimizers typically require the evaluation of expectation values with respect to the outcome of…
Microwave measurement beyond the quantum limit with a nonreciprocal amplifier
F. Lecocq, L. Ranzani, G. A. Peterson +6
The measurement of a quantum system is often performed by encoding its state in a single observable of a light field. The measurement efficiency of this observable can be reduced b…
Harnessing symmetry-protected topological order for quantum memories
Marcel Goihl, Nathan Walk, Jens Eisert +1
Spin chains with symmetry-protected edge modes are promising candidates to realize intrinsically robust physical qubits that can be used for the storage and processing of quantum i…
Closing gaps of a quantum advantage with short-time Hamiltonian dynamics
Jonas Haferkamp, Dominik Hangleiter, Adam Bouland +3
Demonstrating a quantum computational speedup is a crucial milestone for near-term quantum technology. Recently, quantum simulation architectures have been proposed that have the p…
Teleportation-based collective attacks in Gaussian quantum key distribution
Spyros Tserkis, Nedasadat Hosseinidehaj, Nathan Walk +1
In Gaussian quantum key distribution eavesdropping attacks are conventionally modeled through the universal entangling cloner scheme, which is based on the premise that the whole e…
Macroscopic Thermodynamic Reversibility in Quantum Many-Body Systems
Philippe Faist, Takahiro Sagawa, Kohtaro Kato +2
The resource theory of thermal operations, an established model for small-scale thermodynamics, provides an extension of equilibrium thermodynamics to nonequilibrium situations. On…
Asymptotic Reversibility of Thermal Operations for Interacting Quantum Spin Systems via Generalized Quantum Stein's Lemma
Takahiro Sagawa, Philippe Faist, Kohtaro Kato +3
For quantum spin systems in any spatial dimension with a local, translation-invariant Hamiltonian, we prove that asymptotic state convertibility from a quantum state to another one…
Quantum simulation of non-Markovianity using the quantum Zeno effect
Sabrina Patsch, Sabrina Maniscalco, Christiane P. Koch
We suggest a quantum simulator that allows to study the role of memory effects in the dynamics of open quantum systems. Our proposal is based on a bipartite quantum system consisti…
Emerging unitary evolutions in dissipatively coupled systems
C. Arenz, A. Metelmann
Having a broad range of methods available for implementing unitary operations is crucial for quantum information tasks. We study a dissipative process commonly used to describe dis…
Lieb-Robinson bounds for open quantum systems with long-ranged interactions
Ryan Sweke, Jens Eisert, Michael Kastner
We state and prove four types of Lieb-Robinson bounds valid for many-body open quantum systems with power law decaying interactions undergoing out of equilibrium dynamics. We also…
Easing the Monte Carlo sign problem
Dominik Hangleiter, Ingo Roth, Daniel Nagaj +1
Quantum Monte Carlo (QMC) methods are the gold standard for studying equilibrium properties of quantum many-body systems -- their phase transitions, ground and thermal state proper…
Maximal Violation of a Broad Class of Bell Inequalities and Its Implications on Self-Testing
C. Jebarathinam, Jui-Chen Hung, Shin-Liang Chen +1
In quantum information, lifting is a systematic procedure that can be used to derive---when provided with a seed Bell inequality---other Bell inequalities applicable in more compli…
Certified Quantum Random Numbers from Untrusted Light
David Drahi, Nathan Walk, Matty J. Hoban +8
A remarkable aspect of quantum theory is that certain measurement outcomes are entirely unpredictable to all possible observers. Such quantum events can be harnessed to generate nu…
Magic State Distillation: Not as Costly as You Think
Daniel Litinski
Despite significant overhead reductions since its first proposal, magic state distillation is often considered to be a very costly procedure that dominates the resource cost of fau…
Phase space simulation method for quantum computation with magic states on qubits
Robert Raussendorf, Juani Bermejo-Vega, Emily Tyhurst +2
We propose a method for classical simulation of finite-dimensional quantum systems, based on sampling from a quasiprobability distribution, i.e., a generalized Wigner function. Our…
Rotational state changes in collisions of diatomic molecular ions with atomic ions
J. Martin Berglund, Michael Drewsen, Christiane P. Koch
We investigate rotational state changes in a single collision of diatomic molecular ions, polar or apolar, with an atomic ion. Rotational state changes may occur since the angular…
Machine learning for long-distance quantum communication
Julius Wallnöfer, Alexey A. Melnikov, Wolfgang Dür +1
Machine learning can help us in solving problems in the context big data analysis and classification, as well as in playing complex games such as Go. But can it also be used to fin…