Zobrazeno 1 - 10
of 378
pro vyhledávání: '"Borges,Lucas"'
Autor:
Javary, Evans, Thorpe-Woods, Edward, Cortinovis, Irene, Mähring, Marcus, Borges, Lucas de Sousa, Crivelli, Paolo
Positronium and muonium, as purely leptonic atoms without internal structure, provide ideal systems for high-precision tests of quantum electrodynamics (QED) and measurements of fundamental constants. However, the high velocities of these lightweight
Externí odkaz:
http://arxiv.org/abs/2411.19872
Estimating quantum partition functions is a critical task in a variety of fields. However, the problem is classically intractable in general due to the exponential scaling of the Hamiltonian dimension $N$ in the number of particles. This paper introd
Externí odkaz:
http://arxiv.org/abs/2411.17816
We report a new 40 ppb measurement of the positronium $\text{1}^\text{3}\text{S}_\text{1} \to \text{2}^\text{3}\text{S}_\text{1}$ interval using pulsed two-photon optical spectroscopy. The transition is detected via field-ionization of atoms excited
Externí odkaz:
http://arxiv.org/abs/2407.02443
Publikováno v:
J. Chem. Phys. 161, 044119 (2024)
Strong coupling of organic molecules to the vacuum field of a nanoscale cavity can be used to modify their chemical and physical properties. We extend the Tavis-Cummings model for molecular ensembles and show that the often neglected interaction term
Externí odkaz:
http://arxiv.org/abs/2404.10680
Autor:
Sciorilli, Marco, Borges, Lucas, Patti, Taylor L., García-Martín, Diego, Camilo, Giancarlo, Anandkumar, Anima, Aolita, Leandro
We introduce a variational quantum solver for combinatorial optimizations over $m=\mathcal{O}(n^k)$ binary variables using only $n$ qubits, with tunable $k>1$. The number of parameters and circuit depth display mild linear and sublinear scalings in $
Externí odkaz:
http://arxiv.org/abs/2401.09421
Autor:
Zhadnov, Nikita, Golovizin, Artem, Cortinovis, Irene, Ohayon, Ben, Borges, Lucas de Sousa, Janka, Gianluca, Crivelli, Paolo
Publikováno v:
Optics Express Vol. 31, Issue 17, pp. 28470-28479 (2023)
We present a novel technique for in-vacuum cavity-enhanced UV spectroscopy that allows nearly continuous measurements over several days, minimizing mirror degradation caused by high-power UV radiation. Our method relies on pulsing of the cavity's int
Externí odkaz:
http://arxiv.org/abs/2304.13527
Autor:
Cortinovis, Irene, Ohayon, Ben, Borges, Lucas de Sousa, Janka, Gianluca, Golovizin, Artem, Zhadnov, Nikita, Crivelli, Paolo
We present an updated value of the Muonium 1S-2S transition frequency, highlighting contributions from different QED corrections as well as the large uncertainty in the Dirac contribution, stemming from the uncertainty of the electron-to-muon mass ra
Externí odkaz:
http://arxiv.org/abs/2301.12883
Implementing general functions of operators is a powerful tool in quantum computation. It can be used as the basis for a variety of quantum algorithms including matrix inversion, real and imaginary-time evolution, and matrix powers. Quantum signal pr
Externí odkaz:
http://arxiv.org/abs/2206.02826
Autor:
dos Santos Souza, Wesley, da Costa Soares, Stallone, Homem, Bruno Grossi Costa, de Lima, Ítalo Braz Gonçalves, Borges, Lucas Peralta Carneiro, Casagrande, Daniel Rume, de Paula Rezende, Claudia, Pereira, José Marques, Pinheiro, Erika Flávia Machado, Pereira, Marcos Gervasio, Alves, Bruno José Rodrigues, Urquiaga, Segundo, Boddey, Robert Michael
Publikováno v:
In Geoderma Regional December 2024 39
Autor:
Vimieiro, Rodrigo de Barros, Niu, Chuang, Shan, Hongming, Borges, Lucas Rodrigues, Wang, Ge, Vieira, Marcelo Andrade da Costa
Digital breast tomosynthesis (DBT) exams should utilize the lowest possible radiation dose while maintaining sufficiently good image quality for accurate medical diagnosis. In this work, we propose a convolution neural network (CNN) to restore low-do
Externí odkaz:
http://arxiv.org/abs/2203.11722