activity
20042023
most citedMultiqubit symmetric states with high geometric entanglement

128 citations · 663 across the 31 of their papers we have counts for

collaborators

31 papers

quant-ph2023★ 7 cited

On the relevance of weak measurements in dissipative quantum systems

Lorena Ballesteros Ferraz, John Martin, Yves Caudano

We investigate the impact of dissipation on weak measurements. While weak measurements have been successful in signal amplification, dissipation can compromise their usefulness. Mo…

quant-ph2023★ 14 cited

Controlling Matter Phases beyond Markov

Baptiste Debecker, John Martin, François Damanet

Controlling phase transitions in quantum systems via coupling to reservoirs has been mostly studied for idealized memory-less environments under the so-called Markov approximation.…

quant-ph2022★ 3 cited

Estimation of the geometric measure of entanglement with Wehrl Moments through Artificial Neural Networks

Jérôme Denis, François Damanet, John Martin

In recent years, artificial neural networks (ANNs) have become an increasingly popular tool for studying problems in quantum theory, and in particular entanglement theory. In this…

quant-ph2021★ 7 cited

Maximum entanglement of mixed symmetric states under unitary transformations

E. Serrano-Ensástiga, J. Martin

We study the maximum entanglement that can be produced by a global unitary transformation for systems of two and three qubits constrained to the fully symmetric states. This restri…

quant-ph2021★ 13 cited

Extreme depolarization for any spin

Jérôme Denis, John Martin

The opportunity to build quantum technologies operating with elementary quantum systems with more than two levels is now increasingly being examined, not least because of the avail…

quant-ph2019★ 34 cited

Optimal Detection of Rotations about Unknown Axes by Coherent and Anticoherent States

John Martin, Stefan Weigert, Olivier Giraud

Coherent and anticoherent states of spin systems up to spin j=2 are known to be optimal in order to detect rotations by a known angle but unknown rotation axis. These optimal quant…