217 citations · 390 across the 13 of their papers we have counts for
15 papers
Photonic Quantum Policy Learning in OpenAI Gym
Dániel Nagy, Zsolt Tabi, Péter Hága +2
In recent years, near-term noisy intermediate scale quantum (NISQ) computing devices have become available. One of the most promising application areas to leverage such NISQ quantu…
Modeling and mitigation of cross-talk effects in readout noise with applications to the Quantum Approximate Optimization Algorithm
Filip B. Maciejewski, Flavio Baccari, Zoltán Zimborás +1
We introduce a correlated measurement noise model that can be efficiently described and characterized, and which admits effective noise-mitigation on the level of marginal probabil…
Quantum Optimization for the Graph Coloring Problem with Space-Efficient Embedding
Zsolt Tabi, Kareem H. El-Safty, Zsófia Kallus +4
Current quantum computing devices have different strengths and weaknesses depending on their architectures. This means that flexible approaches to circuit design are necessary. We…
Space-efficient binary optimization for variational computing
Adam Glos, Aleksandra Krawiec, Zoltán Zimborás
In the era of Noisy Intermediate-Scale Quantum (NISQ) computers it is crucial to design quantum algorithms which do not require many qubits or deep circuits. Unfortunately, the mos…
Entanglement scaling in fermion chains with a localization-delocalization transition and inhomogeneous modulations
Gergő Roósz, Zoltán Zimborás, Róbert Juhász
We study the scaling of logarithmic negativity between adjacent subsystems in critical fermion chains with various inhomogeneous modulations through numerically calculating its rec…
Central charges of aperiodic holographic tensor network models
Alexander Jahn, Zoltán Zimborás, Jens Eisert
Central to the AdS/CFT correspondence is a precise relationship between the curvature of an anti-de Sitter (AdS) spacetime and the central charge of the dual conformal field theory…
A communication solution for portable detectors of the Cosmic Ray Extremely Distributed Observatory
Katarzyna Smelcerz, Konrad Kopański, Wojciech Noga +17
The search for Cosmic-Ray Ensembles (CRE), groups of correlated cosmic rays that might be distributed over very large areas, even of the size of the planet, requires a globally spr…
Cosmic ray ensembles from ultra-high energy photons propagating in the galactic and intergalactic space
Niraj Dhital, Oleksandr Sushchov, Jan Pekala +15
Propagation of ultra-high energy photons in the galactic and intergalactic space gives rise to cascades comprising thousands of photons. Using Monte Carlo simulations, we investiga…
Mitigation of readout noise in near-term quantum devices by classical post-processing based on detector tomography
Filip B. Maciejewski, Zoltán Zimborás, Michał Oszmaniec
We propose a simple scheme to reduce readout errors in experiments on quantum systems with finite number of measurement outcomes. Our method relies on performing classical post-pro…
Short time behavior of continuous time quantum walks on graphs
Balázs Endre Szigeti, Gábor Homa, Zoltán Zimborás +1
Dynamical evolution of systems with sparse Hamiltonians can always be recognized as continuous time quantum walks (CTQWs) on graphs. In this paper, we analyze the short time asympt…
Sublogarithmic behaviour of the entanglement entropy in fermionic chains
Filiberto Ares, José G. Esteve, Fernando Falceto +1
In this paper, we discuss the possibility of unexplored behaviours for the entanglement entropy in extended quantum systems. Namely, we study the Rényi entanglement entropy for the…
Long term measurements from the Mátra Gravitational and Geophysical Laboratory
P. Ván, G. G. Barnaföldi, T. Bulik +37
Summary of the long term data taking, related to one of the proposed next generation ground-based gravitational detector's location is presented here. Results of seismic and infras…
Generalized quantum Zeno dynamics and ergodic means
Norbert Barankai, Zoltán Zimborás
We prove the existence of uniform limits for certain sequences of products of contractions and elements of a family of uniformly continuous propagators acting on a Hilbert or a Ban…
Entanglement Entropy of Disordered Quantum Wire Junctions
Róbert Juhász, Johannes M. Oberreuter, Zoltán Zimborás
We consider different disordered lattice models composed of linear chains glued together in a star-like manner, and study the scaling of the entanglement between one arm and th…
Approximate recovery with locality and symmetry constraints
Cédric Bény, Zoltán Zimborás, Fernando Pastawski
Numerous quantum many-body systems are characterized by either fundamental or emergent constraints---such as gauge symmetries or parity superselection for fermions---which effectiv…