activity
20242026
most citedTwo-time weak measurement protocol for ergotropy protection in open quantum batteries

16 citations · 17 across the 12 of their papers we have counts for

collaborators

13 papers

quant-ph2026

Unequal Coherent Ergotropy at Equal Interferometric Visibility and Energy in Quantum-Controlled Interferometers

Tonipe Anuradha, André H. A. Malavazi, Borhan Ahmadi +2

The ergotropy, or unitarily extractable work, of a quantum system naturally splits into incoherent and coherent contributions, respectively set by population inversion and coherenc…

quant-ph2026

Boosting State Discrimination in Quantum Brownian Motion Channel via Memory-Induced Coherence Preservation

João C. P. Porto, Pedro R. Dieguez, Carlos H. S. Vieira +3

Preserving quantum resources in dissipative environments is a fundamental challenge in quantum information processing. While environmental interactions usually degrade quantum reso…

quant-ph2026

Weak-to-Strong Measurement Transition with Thermal Instabilities: From Anomalous Amplification to Metrological Sensitivity

Marcos V. S. Lima, Carlos H. S. Vieira, Irismar G. da Paz +2

Quantum measurement is physically realized through a finite dynamical interaction between a system and a measuring apparatus, giving rise to a continuous transition from weak to st…

quant-ph2025★ 1 cited

Charge-Preserving Operations in Quantum Batteries

André H. A. Malavazi, Borhan Ahmadi, Paweł Horodecki +1

Ergotropy provides a fundamental measure of the extractable work from a quantum system and, consequently, of the maximal useful energy, or charge, stored within it. Understanding h…

quant-ph2025

High-dimensional detection-loophole-free measurement-device-independent quantum random number generator

Joakim Argillander, Daniel Spegel-Lexne, Martin Clason +4

Certifying random number generators is challenging, especially in security-critical fields like cryptography. Here, we demonstrate a measurement-device-independent quantum random n…

quant-ph2025

Correlations in a quantum switch-based heat engine with measurements: A proof-of-principle demonstration

Vinicius F. Lisboa, Pedro R. Dieguez, Kyrylo Simonov +1

Allowing the order of quantum operations to exist in superposition is known to open new routes for thermodynamic tasks. We investigate a quantum heat engine where energy exchanges…

quant-ph2025

Certifying semi-device-independent security via wave-particle duality experiments

Chithra Raj, Tushita Prasad, Anubhav Chaturvedi +8

Wave-particle duality is known to be equivalent to an entropic uncertainty relation based on the min- and max-entropies, which have a clear operational meaning in quantum cryptogra…

quant-ph2025

Hacking quantum computers with row hammer attack

Fernando Almaguer-Angeles, Pedro R. Dieguez, Akshata Shenoy H. +1

We demonstrate a hardware vulnerability in quantum computing systems by exploiting cross-talk effects on an available commercial quantum computer (IBM). Specifically, based on the…

quant-ph2025

Revival and instabilities of entanglement in monitoring maps with indefinite causal order

Shahana Aziz, André H. A. Malavazi, Pedro R. Dieguez

In this proceeding, we revisit the discussion presented in Ref. [Commun Phys 7, 373 (2024)], which examines the behavior of a quantum switch involving two arbitrary quantum operati…

quant-ph2025

Emergence of realism through quantum discord suppression in photonic weak measurements

Fabrício Lustosa, Diego G. Barreto, Eduardo C. Lima +3

The emergence of realism from the quantum domain, often associated with the suppression of quantum features, is a key aspect of the quantum-to-classical transition. In this work, w…

quant-ph2024★ 16 cited

Two-time weak measurement protocol for ergotropy protection in open quantum batteries

André H. A. Malavazi, Rishav Sagar, Borhan Ahmadi +1

Quantum batteries are emerging as highly efficient energy storage devices that can exceed classical performance limits. Although there have been significant advancements in control…

quant-ph2024

Experimental demonstration of the equivalence of entropic uncertainty with wave-particle duality

Daniel Spegel-Lexne, Santiago Gómez, Joakim Argillander +4

Wave-particle duality is one of the most striking and counter-intuitive features of quantum mechanics, illustrating that two incompatible observables cannot be measured simultaneou…

quant-ph2024

Security of device-independent quantum key distribution via monogamy relations from multipartite information causality

Lucas Pollyceno, Anubhav Chaturvedi, Chithra Raj +2

Beyond the foundational significance, the problem of bounding nonlocal correlations by reasonable physical principles has meaningful practical consequences, particularly for device…