activity
20182022
most citedTime crystallinity in open quantum systems

60 citations · 203 across the 7 of their papers we have counts for

collaborators

8 papers

quant-ph2022★ 7 cited

Robustness of non-locality in many-body open quantum systems

Carlo Marconi, Andreu Riera-Campeny, Anna Sanpera +1

Non-locality consists in the existence of non-classical correlations between local measurements. So far, it has been investigated mostly in isolated quantum systems. Here we show t…

quant-ph2021★ 19 cited

Open quantum systems coupled to finite baths: A hierarchy of master equations

Andreu Riera-Campeny, Anna Sanpera, Philipp Strasberg

An open quantum system in contact with an infinite bath approaches equilibrium, while the state of the bath remains unchanged. If the bath is finite, the open system still relaxes…

quant-ph2020★ 41 cited

Clausius Inequality for Finite Baths Reveals Universal Efficiency Improvements

Philipp Strasberg, María García Díaz, Andreu Riera-Campeny

We study entropy production in nanoscale devices, which are coupled to finite heat baths. This situation is of growing experimental relevance, but most theoretical approaches rely…

quant-ph2020

Storage capacity and learning capability of quantum neural networks

Maciej Lewenstein, Aikaterini Gratsea, Andreu Riera-Campeny +3

We study the storage capacity of quantum neural networks (QNNs) described as completely positive trace preserving (CPTP) maps, which act on an -dimensional Hilbert space. We dem…

quant-ph2020★ 9 cited

Measurement-induced resetting in open quantum systems

Andreu Riera-Campeny, Jan Ollé, Axel Masó-Puigdellosas

We put forward a novel approach to study the evolution of an arbitrary open quantum system under a resetting process. Using the framework of renewal equations, we find a universal…

quant-ph2020★ 46 cited

Quantum systems correlated with a finite bath: nonequilibrium dynamics and thermodynamics

Andreu Riera-Campeny, Anna Sanpera, Philipp Strasberg

Describing open quantum systems far from equilibrium is challenging, in particular when the environment is mesoscopic, when it develops nonequilibrium features during the evolution…

quant-ph2019★ 60 cited

Time crystallinity in open quantum systems

Andreu Riera-Campeny, Maria Moreno-Cardoner, Anna Sanpera

Time crystals are genuinely non-equilibrium quantum phases of matter that break time-translational symmetry. While in non-equilibrium closed systems time crystals have been experim…

quant-ph2018★ 21 cited

Dynamically induced heat rectification in quantum systems

Andreu Riera-Campeny, Mohammad Mehboudi, Marisa Pons +1

Heat rectifiers are systems that conduct heat asymmetrically for forward and reversed temperature gradients. Here, we present an analytical study of heat rectification in linear qu…