Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR2k papers
- Vrije Universiteit BrusselBE1.8k papers
- University of Maryland, College ParkUS1.7k papers
- RWTH Aachen UniversityDE1.6k papers
- Massachusetts Institute of TechnologyUS1.6k papers
- University of Wisconsin–MadisonUS1.5k papers
- The Ohio State UniversityUS1.5k papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR1.5k papers
- University of KansasUS1.5k papers
- UCLouvainBE1.5k papers
- Sungkyunkwan UniversityKR1.5k papers
- Universität HamburgDE1.5k papers
23 papers · 2 filters
Experimental measurement of the quantum geometric tensor using coupled qubits in diamond
Min Yu, Pengcheng Yang, Musang Gong +9
Geometry and topology are fundamental concepts, which underlie a wide range of fascinating physical phenomena such as topological states of matter and topological defects. In quant…
All fundamental non-contextuality inequalities are unique
Kishor Bharti, Atul Singh Arora, Leong Chuan Kwek +1
Contextuality is one way of capturing the non-classicality of quantum theory. The contextual nature of a theory is often witnessed via the violation of non-contextuality inequaliti…
Quantum Weak Coin Flipping
Atul Singh Arora, Jérémie Roland, Stephan Weis
We investigate weak coin flipping, a fundamental cryptographic primitive where two distrustful parties need to remotely establish a shared random bit. A cheating player can try to…
Practical No-Signalling proof Randomness Amplification using Hardy paradoxes and its experimental implementation
Ravishankar Ramanathan, Michał Horodecki, Hammad Anwer +6
Device-Independent (DI) security is the best form of quantum cryptography, providing information-theoretic security based on the very laws of nature. In its highest form, security…
Continuous-variable entropic uncertainty relations
Anaelle Hertz, Nicolas J. Cerf
Uncertainty relations are central to quantum physics. While they were originally formulated in terms of variances, they have later been successfully expressed with entropies follow…
Parametric instabilities in a 2D periodically-driven bosonic system: Beyond the weakly-interacting regime
T. Boulier, J. Maslek, M. Bukov +6
We experimentally investigate the effects of parametric instabilities on the short-time heating process of periodically-driven bosons in 2D optical lattices with a continuous trans…
Finding a marked node on any graph by continuous-time quantum walk
Shantanav Chakraborty, Leonardo Novo, Jérémie Roland
Spatial search by discrete-time quantum walk can find a marked node on any ergodic, reversible Markov chain quadratically faster than its classical counterpart, i.e.\ in a time…
Quantifying the randomness of copies of noisy Popescu-Rohrlich correlations
Boris Bourdoncle, Stefano Pironio, Antonio Acin
In a no-signaling world, the outputs of a nonlocal box cannot be completely predetermined, a feature that is exploited in many quantum information protocols exploiting non-locality…
Gadget structures in proofs of the Kochen-Specker theorem
Ravishankar Ramanathan, Monika Rosicka, Karol Horodecki +3
The Kochen-Specker theorem is a fundamental result in quantum foundations that has spawned massive interest since its inception. We show that within every Kochen-Specker graph, the…
Fock majorization in bosonic quantum channels with a passive environment
Michael G. Jabbour, Nicolas J. Cerf
We introduce a class of quantum channels called passive-environment bosonic channels. These channels are relevant from a quantum thermodynamical viewpoint because they correspond t…
All phase-space linear bosonic channels are approximately Gaussian dilatable
Ludovico Lami, Krishna Kumar Sabapathy, Andreas Winter
We compare two sets of multimode quantum channels acting on a finite collection of harmonic oscillators: (a) the set of linear bosonic channels, whose action is described as a line…
From Quantum Axiomatics to Quantum Conceptuality
Diederik Aerts, Massimiliano Sassoli de Bianchi, Sandro Sozzo +1
Since its inception, many physicists have seen in quantum mechanics the possibility, if not the necessity, of bringing cognitive aspects into the play, which were instead absent, o…
On Aerts' overlooked solution to the EPR paradox
Massimiliano Sassoli de Bianchi
The Einstein-Podolsky-Rosen (EPR) paradox was enunciated in 1935 and since then it has made a lot of ink flow. Being a subtle result, it has also been largely misunderstood. Indeed…
Hypergraph framework for irreducible noncontextuality inequalities from logical proofs of the Kochen-Specker theorem
Ravi Kunjwal
Kochen-Specker (KS) theorem reveals the inconsistency between quantum theory and any putative underlying model of it satisfying the constraint of KS-noncontextuality. A logical pro…
Total Functions in QMA
Serge Massar, Miklos Santha
The complexity class QMA is the quantum analog of the classical complexity class NP. The functional analogs of NP and QMA, called functional NP (FNP) and functional QMA (FQMA), con…
Quantum violations in the Instrumental scenario and their relations to the Bell scenario
Thomas Van Himbeeck, Jonatan Bohr Brask, Stefano Pironio +3
The causal structure of any experiment implies restrictions on the observable correlations between measurement outcomes, which are different for experiments exploiting classical, q…
The power of block-encoded matrix powers: improved regression techniques via faster Hamiltonian simulation
Shantanav Chakraborty, András Gilyén, Stacey Jeffery
We apply the framework of block-encodings, introduced by Low and Chuang (under the name standard-form), to the study of quantum machine learning algorithms and derive general resul…
Simulating arbitrary Gaussian circuits with linear optics
Levon Chakhmakhchyan, Nicolas J. Cerf
Linear canonical transformations of bosonic modes correspond to Gaussian unitaries, which comprise passive linear-optical transformations as effected by a multiport passive interfe…
Multiparticle quantum interference in Bogoliubov bosonic transformations
Michael G. Jabbour, Nicolas J. Cerf
We explore the multiparticle transition probabilities in Gaussian unitaries effected by a two-mode Bogoliubov bosonic transformation on the mode annihilation and creation operators…
Resource theory of unextendibility and non-asymptotic quantum capacity
Eneet Kaur, Siddhartha Das, Mark M. Wilde +1
In this paper, we introduce the resource theory of unextendibility as a relaxation of the resource theory of entanglement. The free states in this resource theory are the k-extendi…
Device-independent quantum key distribution with single-photon sources
Jan Kołodyński, Alejandro Máttar, Paul Skrzypczyk +4
Device-independent quantum key distribution protocols allow two honest users to establish a secret key with minimal levels of trust on the provider, as security is proven without a…
Time-delocalized quantum subsystems and operations: on the existence of processes with indefinite causal structure in quantum mechanics
Ognyan Oreshkov
It has been shown that it is theoretically possible for there to exist higher-order quantum processes in which the operations performed by separate parties cannot be ascribed a def…
Bell monogamy relations in arbitrary qubit networks
Minh Cong Tran, Ravishankar Ramanathan, Matthew McKague +2
Characterizing trade-offs between simultaneous violations of multiple Bell inequalities in a large network of qubits is computationally demanding. We propose a graph-theoretic appr…