666 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Universidade Federal do Rio de JaneiroBR289 papers
- Universidade de São PauloBR215 papers
- Centro Brasileiro de Pesquisas FísicasBR188 papers
- Centre National de la Recherche ScientifiqueFR165 papers
- Universidade Estadual de Campinas (UNICAMP)BR156 papers
- Universidade Federal do ABCBR123 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di NapoliIT103 papers
- Radboud University NijmegenNL103 papers
- Universidad Nacional Autónoma de MéxicoMX101 papers
- Universidade do Estado do Rio de JaneiroBR98 papers
- Consejo Nacional de Investigaciones Científicas y TécnicasAR94 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR94 papers
15 papers · 2 filters
Quantum-controlled cluster states
R. F. Barros, G. B. Alves, O. Pfister +1
Quantum optical cluster states have been increasingly explored, in the light of their importance for measurement-based quantum computing. Here we set forth a new method for generat…
Charging power and stability of always-on transitionless driven quantum batteries
Luiz F. C. Moraes, Andreia Saguia, Alan C. Santos +1
The storage and transfer of energy through quantum batteries are key elements in quantum networks. Here, we propose a charger design based on transitionless quantum driving (TQD),…
Bell inequality violation and operator ordering in quantum theory
H. M. Faria, K. Dechoum, A. Z. Khoury
We investigate the role played by quantum operator ordering in the correlations that characterize two-photon polarization Bell measurements. The Clauser-Horne-Shimony-Holt (CHSH) c…
Time-dependent quantum harmonic oscillator: a continuous route from adiabatic to sudden changes
D. Martínez-Tibaduiza, L. Pires, C. Farina
In this work, we provide an answer to the question: how sudden or adiabatic is a change in the frequency of a quantum harmonic oscillator (HO)? To do this, we investigate the behav…
Lowering Helstrom Bound with non-standard coherent states
Evaldo M. F. Curado, Sofiane Faci, Jean-Pierre Gazeau +1
In quantum information processing, {using a receiver device to differentiate between two nonorthogonal states leads to a quantum error probability. The minimum possible error is} k…
Periodic discretized continuous observables are neither continuous nor discrete
Thais L. Silva, Łukasz Rudnicki, Daniel S. Tasca +1
Most of the fundamental characteristics of quantum mechanics, such as non-locality and contextuality, are manifest in discrete, finite-dimensional systems. However, many quantum in…
Quantum Multiplayer Colonel Blotto Game
J. Naskar, A. C. Maioli
In this work we successfully present a quantum version of the multiplayer Colonel Blotto game. We find that players with access to the quantum strategies has a advantage over the c…
Efficiency gain and bidirectional operation of quantum engines with decoupled internal levels
Thiago R. de Oliveira, Daniel Jonathan
We present a mechanism for efficiency increase in quantum heat engines containing internal energy levels that do not couple to the external work sink. The gain is achieved by using…
Spin-orbit implementation of Solovay-Kitaev decomposition of single-qubit channels
M. H. M. Passos, A. de Oliveira Junior, M. C. de Oliveira +2
The Solovay-Kitaev theorem allows us to approximate any single-qubit gate to arbitrary accuracy with a finite sequence of fundamental operations from a universal set of gates. Insp…
Sufficient conditions for adiabaticity in open quantum systems
Alan C. Santos, Marcelo S. Sarandy
The adiabatic approximation exhibits wide applicability in quantum mechanics, providing a simple approach for nontransitional dynamics in quantum systems governed by slowly varying…
Dissipative flow equations
Lorenzo Rosso, Fernando Iemini, Marco Schirò +1
We generalize the theory of flow equations to open quantum systems focusing on Lindblad master equations. We introduce and discuss three different generators of the flow that trans…
Boosting entanglement generation in down-conversion with incoherent illumination
Lucas Hutter, Gustavo Lima, Stephen P. Walborn
Entangled photons produced by spontaneous parametric down-conversion have been of paramount importance for our current understanding of quantum mechanics and advances in quantum in…
Almost exact state transfer in a spin chain via pulse control
Zhao-Ming Wang, Marcelo S. Sarandy, Lian-Ao Wu
Quantum communication through spin chains has been extensively investigated. In this scenario, state transfer through linearly arranged spins connected by uniform nearest-neighbor…
Quantum Statistical Complexity Measure as a Signalling of Correlation Transitions
André T. Cesário, Diego L. B. Ferreira, Tiago Debarba +3
We introduce a quantum version for the statistical complexity measure, in the context of quantum information theory, and use it as a signalling function of quantum order-disorder t…
Teleporting quantum information encoded in fermionic modes
Tiago Debarba, Fernando Iemini, Geza Giedke +1
Quantum teleportation is considered a basic primitive in many quantum information processing tasks and has been experimentally confirmed in various photonic and matter-based setups…