10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for High Energy PhysicsES2k papers
- Institució Catalana de Recerca i Estudis AvançatsES1.3k papers
- Centre National de la Recherche ScientifiqueFR1.2k papers
- University of PisaIT1.2k papers
- University College LondonGB1.1k papers
- Lawrence Berkeley National LaboratoryUS1.1k papers
- University of MichiganUS1.1k papers
- University of GenevaCH1.1k papers
- The Ohio State UniversityUS1.1k papers
- University of ChicagoUS1k papers
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- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT1k papers
24 papers · 2 filters
Toy Model Challenging Prevailing Definitions of Classicality
Irene Valladares Duque, Philipp Strasberg
We analyze a toy model that obeys environmentally induced decoherence and quantum Darwinism and satisfies the decoherent histories criterion and Leggett-Garg inequalities with resp…
Rapid optimal work extraction from a quantum-dot information engine
Kushagra Aggarwal, Alberto Rolandi, Yikai Yang +8
The conversion of thermal energy into work is usually more efficient in the slow-driving regime, where the power output is vanishingly small. Efficient work extraction for fast dri…
From dynamical to steady-state many-body metrology: Precision limits and their attainability with two-body interactions
Ricard Puig, Pavel Sekatski, Paolo Andrea Erdman +3
We consider the estimation of an unknown parameter via a many-body probe. The probe is initially prepared in a product state and many-body time-independent interactions enhance…
Randomness-free Detection of Non-projective Measurements: Qubits & beyond
Sumit Rout, Some Sankar Bhattacharya, Paweł Horodecki
Non-projective measurements play a crucial role in various information-processing protocols. In this work, we propose an operational task to identify measurements that are neither…
Quantum master equation from the eigenstate thermalization hypothesis
Peter O'Donovan, Philipp Strasberg, Kavan Modi +2
We use the eigenstate thermalization hypothesis to derive a quantum master equation for a system weakly coupled to a chaotic finite-sized bath prepared in a pure state. We show tha…
A Quantum Annealing Protocol to Solve the Nuclear Shell Model
Emanuele Costa, Axel Perez-Obiol, Javier Menendez +3
The nuclear shell model accurately describes the structure and dynamics of atomic nuclei. However, the exponential scaling of the basis size with the number of degrees of freedom h…
Thermodynamics of coupled time crystals with an application to energy storage
Paulo J. Paulino, Albert Cabot, Gabriele De Chiara +3
Open many-body quantum systems can exhibit intriguing nonequilibrium phases of matter, such as time crystals. In these phases, the state of the system spontaneously breaks the time…
Efficient Hamiltonian, structure and trace distance learning of Gaussian states
Marco Fanizza, Cambyse Rouzé, Daniel Stilck França
In this work, we initiate the study of Hamiltonian learning for positive temperature bosonic Gaussian states, the quantum generalization of the widely studied problem of learning G…
Minimizing Dissipation via Interacting Environments: Quadratic Convergence to Landauer Bound
Patryk Lipka-Bartosik, Martí Perarnau-Llobet
We explore the fundamental limits on thermodynamic irreversibility when cooling a quantum system in the presence of a finite-size reservoir. First, we prove that for any non-intera…
Sufficient criteria for absolute separability in arbitrary dimensions via linear map inverses
Jofre Abellanet-Vidal, Guillem Müller-Rigat, Grzegorz Rajchel-Mieldzioć +1
Quantum states that remain separable (i.e., not entangled) under any global unitary transformation are known as absolutely separable and form a convex set. Despite extensive effort…
Quantum Keyless Private Communication with Decoy States for Space Channels
Angeles Vazquez-Castro, Andreas Winter, Hugo Zbinden
With the increasing demand for secure communication in optical space networks, it is essential to develop physical-layer scalable security solutions. In this context, we present th…
An efficient finite-resource formulation of non-Abelian lattice gauge theories beyond one dimension
Pierpaolo Fontana, Marc Miranda Riaza, Alessio Celi
Non-Abelian gauge theories provide the most accurate description of fundamental interactions, showing remarkable agreement with experimental data in cosmology and particle physics.…
Time Derivatives of Weak Values
Xavier Oriols
The time derivative of a physical property often gives rise to another meaningful property. Since weak values provide empirical insights that cannot be derived from expectation val…
Harnessing Quantum Extreme Learning Machines for image classification
A. De Lorenzis, M. P. Casado, M. P. Estarellas +5
Interest in quantum machine learning is increasingly growing due to its potential to offer more efficient solutions for problems that are difficult to tackle with classical methods…
Boundary Time Crystals as AC sensors: enhancements and constraints
Dominic Gribben, Anna Sanpera, Rosario Fazio +2
We investigate the use of a boundary time crystals (BTCs) as quantum sensors of AC fields. Boundary time crystals are non-equilibrium phases of matter in contact to an environment,…
Exploring Ground States of Fermi-Hubbard Model on Honeycomb Lattices with Counterdiabaticity
Jialiang Tang, Ruoqian Xu, Yongcheng Ding +6
Exploring the ground state properties of many-body quantum systems conventionally involves adiabatic processes, alongside exact diagonalization, in the context of quantum annealing…
Quantum Edge Detection
Santiago Llorens, Walther González, Gael Sentís +3
This paper introduces quantum edge detection, aimed at locating boundaries of quantum domains where all particles share the same pure state. Focusing on the 1D scenario of a string…
Exploring Imaginary Coordinates: Disparity in the Shape of Quantum State Space in Even and Odd Dimensions
Simon Morelli, Santiago Llorens, Jens Siewert
The state of a finite-dimensional quantum system is described by a density matrix that can be decomposed into a real diagonal, a real off-diagonal and and an imaginary off-diagonal…
Efficiently Cooling Quantum Systems with Finite Resources: Insights from Thermodynamic Geometry
Philip Taranto, Patryk Lipka-Bartosik, Nayeli A. Rodríguez-Briones +4
Landauer's limit on heat dissipation during information erasure is critical as devices shrink, requiring optimal pure-state preparation to minimise errors. However, Nernst's third…
Multipartite entanglement in the diagonal symmetric subspace
Jordi Romero-Pallejà, Jennifer Ahiable, Alessandro Romancino +2
We investigate the entanglement properties in the symmetric subspace of -partite -dimensional systems (qudits). For diagonal symmetric states, we show that there is no bound…
Complexity-constrained quantum thermodynamics
Anthony Munson, Naga Bhavya Teja Kothakonda, Jonas Haferkamp +3
Quantum complexity measures the difficulty of realizing a quantum process, such as preparing a state or implementing a unitary. We present an approach to quantifying the thermodyna…
Why engineers are right to avoid the quantum reality offered by the orthodox theory?
X. Oriols, D. K. Ferry
A proper knowledge of the reality of a physical theory is important to get an understanding of empirical phenomena. Despite its extraordinary predictive successes, the orthodox (al…
Fundamental limits of metrology at thermal equilibrium
Paolo Abiuso, Pavel Sekatski, John Calsamiglia +1
We consider the estimation of an unknown parameter through a quantum probe at thermal equilibrium. The probe is assumed to be in a Gibbs state according to its Hamiltonian $H_θ…
Coherent collisional decoherence
Leonardo Badurina, Clara Murgui, Ryan Plestid
We study the decoherence of a system of non-interacting heavy particles (atoms) due to coherent scattering with a background gas. We introduce a framework for computing the ind…