Zobrazeno 1 - 10
of 55
pro vyhledávání: '"Dieguez, P. R."'
Autor:
Porto, João C. P., Marinho, Lucas S., Dieguez, Pedro R., da Paz, Irismar G., Vieira, Carlos H. S.
Quantum metrology offers significant improvements in several quantum technologies. In this work, we propose a Gaussian quantum metrology protocol assisted by initial position-momentum correlations (PM). We employ a correlated Gaussian wave packet as
Externí odkaz:
http://arxiv.org/abs/2408.13060
Autor:
Spegel-Lexne, Daniel, Gómez, Santiago, Argillander, Joakim, Pawłowski, Marcin, Dieguez, Pedro R., Alarcón, Alvaro, Xavier, Guilherme B.
Wave-particle duality is one of the most striking and counter-intuitive features of quantum mechanics, illustrating that two incompatible observables cannot be measured simultaneously with arbitrary precision. In this work, we experimentally demonstr
Externí odkaz:
http://arxiv.org/abs/2407.03797
The monogamy of nonlocality is one the most intriguing and cryptographically significant predictions of quantum theory. The physical principle of information causality offers a promising means to understand and restrict the extent of nonlocality with
Externí odkaz:
http://arxiv.org/abs/2405.20115
Autor:
Molitor, Otavio A. D., Malavazi, André H. A., Baldijão, Roberto Dobal, Orthey Jr., Alexandre C., Paiva, Ismael L., Dieguez, Pedro R.
The superposition of causal order shows promise in various quantum technologies. However, the fragility of quantum systems arising from environmental interactions, leading to dissipative behavior and irreversibility, demands a deeper understanding of
Externí odkaz:
http://arxiv.org/abs/2405.09631
The Gouy phase is essential for accurately describing various wave phenomena, ranging from classical electromagnetic waves to matter waves and quantum optics. In this work, we employ phase-space methods based on the cross-Wigner transformation to ana
Externí odkaz:
http://arxiv.org/abs/2401.00083
Publikováno v:
Phys. Rev. A 109, 062207 (2024)
Complementarity plays a pivotal role in understanding a diverse range of quantum phenomena. Here, we show how the tradeoff between quantities of a complete complementarity relation is modified in an arbitrary spacetime for a particle with an internal
Externí odkaz:
http://arxiv.org/abs/2306.08136
Correlation is the basic mechanism of every measurement model, as one never accesses the measured system directly. Instead, correlations are created, codifying information about the measurable property into the environment. Here, we address the probl
Externí odkaz:
http://arxiv.org/abs/2305.07919
Autor:
Vieira, Carlos H. S., de Oliveira, Jefferson L. D., Santos, Jonas F. G., Dieguez, Pedro R., Serra, Roberto M.
Publikováno v:
J. Magn. Reson. Open 16-17, 100105 (2023)
Quantum thermodynamics seeks to extend non-equilibrium stochastic thermodynamics to small quantum systems where non-classical features are essential to its description. Such a research area has recently provided meaningful theoretical and experimenta
Externí odkaz:
http://arxiv.org/abs/2303.08917
Publikováno v:
Phys. Rev. A 107, 032213 (2023)
The Aharonov-Bohm effect is a fundamental topological phenomenon with a wide range of applications. It consists of a charge encircling a region with a magnetic flux in a superposition of wave packets having their relative phase affected by the flux.
Externí odkaz:
http://arxiv.org/abs/2209.00480
Publikováno v:
Phys. Rev. A 107, 012423 (2023)
A quantum-controlled device may produce a scenario in which two general quantum operations can be performed in such a way that it is not possible to associate a definite order for the operations application. Such an indefinite causal order can be exp
Externí odkaz:
http://arxiv.org/abs/2205.14406