activity
20152026
most citedEffect of strong magnetic fields on the crust-core transition and inner crust of neutron stars

27 citations · 73 across the 9 of their papers we have counts for

collaborators

9 papers

cs.LG2026

Medical Imaging Classification with Cold-Atom Reservoir Computing using Auto-Encoders and Surrogate-Driven Training

Nuno Batista, Ana Morgado, Oscar Ferraz +3

We introduce a hybrid quantum-classical pipeline, based on neutral-atom reservoir computing, for medical image classification, focusing on the binary classification task of polyp d…

quant-ph2025★ 1 cited

An Elementary Characterization of Bargmann Invariants

Sagar Silva Pratapsi, João Gouveia, Leonardo Novo +1

Bargmann invariants, also known as multivariate traces of quantum states , are unitary invariant quantities used to characterize weak values,…

quant-ph2024★ 9 cited

Quantum speed limit for Kirkwood-Dirac quasiprobabilities

Sagar Silva Pratapsi, Sebastian Deffner, Stefano Gherardini

What is the minimal time until a quantum system can exhibit genuine quantum features? To answer this question we derive quantum speed limits for two-time correlation functions aris…

quant-ph2023

Improving fidelity of multi-qubit gates using hardware-level pulse parallelization

Sagar Silva Pratapsi, Diogo Cruz

Quantum computation holds the promise of solving computational problems which are believed to be classically intractable. However, in practice, quantum devices are still limited by…

quant-ph2023★ 2 cited

Competition of decoherence and quantum speed limits for quantum-gate fidelity in the Jaynes-Cummings model

Sagar Silva Pratapsi, Lorenzo Buffoni, Stefano Gherardini

Quantum computers are operated by external driving fields, such as lasers, microwaves or transmission lines, that execute logical operations on multi-qubit registers, leaving the s…

quant-ph2022★ 6 cited

Quantum dynamics for energetic advantage in a charge-based classical full-adder

João P. Moutinho, Marco Pezzutto, Sagar Pratapsi +5

We present a proposal for a one-bit full-adder to process classical information based on the quantum reversible dynamics of a triple quantum dot system. The device works via the re…

astro-ph.HE2017★ 22 cited

Crust-core transition of a neutron star: effects of the symmetry energy and temperature under strong magnetic fields

Jianjun Fang, Helena Pais, Sagar Pratapsi +1

We study the simultaneous effects of the symmetry energy and temperature on the crust-core transition of a magnetar. The dynamical and the thermodynamical spinodals are used to cal…

astro-ph.HE2017★ 27 cited

Effect of strong magnetic fields on the crust-core transition and inner crust of neutron stars

Jianjun Fang, Helena Pais, Sagar Pratapsi +3

The Vlasov equation is used to determine the dispersion relation for the eigenmodes of magnetized nuclear and neutral stellar matter, taking into account the anomalous magnetic mom…

math.AP2015★ 6 cited

Existence of positive solutions for an approximation of stationary mean-field games

Nojood Almayouf, Elena Bachini, Andreia Chapouto +22

Here, we consider a regularized mean-field game model that features a low-order regularization. We prove the existence of solutions with positive density. To do so, we combine a pr…