Zobrazeno 1 - 10
of 2 464
pro vyhledávání: '"Soto, L"'
We investigate the squeezing of ultrashort pulses using self-induced transparency in a mercury-filled hollow-core photonic crystal fiber. Our focus is on quadrature squeezing at low mercury vapor pressures, with atoms near resonance on the $^3{\rm D}
Externí odkaz:
http://arxiv.org/abs/2410.11039
The quantum Cram\'er-Rao bound for the joint estimation of the centroid and the separation between two incoherent point sources cannot be saturated. As such, the optimal measurements for extracting maximal information about both at the same time are
Externí odkaz:
http://arxiv.org/abs/2406.17009
Autor:
Teo, Y. S., Shringarpure, S. U., Jeong, H., Prasannan, N., Brecht, B., Silberhorn, C., Evans, M., Mogilevtsev, D., Sanchez-Soto, L. L.
Publikováno v:
Phys. Rev. A 110, 012231 (2024)
We introduce the framework of Bayesian relative belief that directly evaluates whether or not the experimental data at hand supports a given hypothesis regarding a quantum system by directly comparing the prior and posterior probabilities for the hyp
Externí odkaz:
http://arxiv.org/abs/2406.03343
Autor:
Castelli, A. V. Smith, Cortesi, A., Haack, R. F., Lopes, A. R., Thainá-Batista, J., Fernandes, R. Cid, Lomelí-Núñez, L., Ribeiro, U., de Bom, C. R., Cernic, V., Sodré Jr, L., Zenocratti, L., De Rossi, M. E., Calderón, J. P., Herpich, F., Telles, E., Saha, K., Lopes, P. A. A., Lopes-Silva, V. H., Gonçalves, T. S., Bambrila, D., Cardoso, N. M., Buzzo, M. L., Sotomayor, P. Astudillo, Demarco, R., Leigh, N., Sarzi, M., Menéndez-Delmestre, K., Faifer, F. R., Jiménez-Teja, Y., Grossi, M., Hernández-Jiménez, J. A., Krabbe, A. C., Soto, L. A. Gutiérrez, Brandão, D., Espinosa, L., Olave-Rojas, D. E., Schwarz, G. B. Oliveira, Almeida-Fernandes, F., Schoenell, W., Ribeiro, T., Kanaan, A., de Oliveira, C. Mendes
The Fornax galaxy cluster is the richest nearby (D ~ 20 Mpc) galaxy association in the southern sky. As such, it provides a wealth of oportunities to elucidate on the processes where environment holds a key role in transforming galaxies. Although it
Externí odkaz:
http://arxiv.org/abs/2403.10697
Autor:
Teo, Y. S., Jeong, H., Prasannan, N., Brecht, B., Silberhorn, C., Evans, M., Mogilevtsev, D., Sanchez-Soto, L. L.
Publikováno v:
Phys. Rev. Lett. 133, 050204 (2024)
Identifying a reasonably small Hilbert space that completely describes an unknown quantum state is crucial for efficient quantum information processing. We introduce a general dimension-certification protocol for both discrete and continuous variable
Externí odkaz:
http://arxiv.org/abs/2401.01562
Autor:
Najafabadi, M. S., Sánchez-Soto, L. L., Corney, J. F., Kalinin, N., Sorokin, A. A., Leuchs, G.
Publikováno v:
Phys. Rev. Research ( 2024)
We study the quantum squeezing produced in self-induced transparency in a photonic crystal fiber by performing a fully quantum simulation based on the positive $P$ representation. The amplitude squeezing depends on the area of the initial pulse: when
Externí odkaz:
http://arxiv.org/abs/2311.02032
Autor:
Peterek, M., Paur, M., Vitek, M., Koutny, D., Stoklasa, B., Motka, L., Hradil, Z., Rehacek, J., Sanchez-Soto, L. L.
Enhancing the ability to resolve axial details is crucial in three-dimensional optical imaging. We provide experimental evidence showcasing the ultimate precision achievable in axial localization using vortex beams. For Laguerre-Gauss (LG) beams, thi
Externí odkaz:
http://arxiv.org/abs/2310.19908
Publikováno v:
Quantum 8, 1363 (2024)
Coherent-state representations are a standard tool to deal with continuous-variable systems, as they allow one to efficiently visualize quantum states in phase space. Here, we work out an alternative basis consisting of monomials on the basic observa
Externí odkaz:
http://arxiv.org/abs/2309.10042
Publikováno v:
Phys. Rev. Research 5, 033198 (2023)
Quantum theory allows the traversing of multiple channels in a superposition of different orders. When the order in which the channels are traversed is controlled by an auxiliary quantum system, various unknown parameters of the channels can be estim
Externí odkaz:
http://arxiv.org/abs/2309.07220
Autor:
Butt, M. A. T., Roth, P., Wong, G. K. L., Frosz, M. H., Sanchez-Soto, L. L., Anashkina, E. A., Andrianov, A. V., Banzer, P., Russell, P. S. J., Leuchs, G.
Polarization-preserving fibers maintain the two polarization states of an orthogonal basis. Quantum communication, however, requires sending at least two nonorthogonal states and these cannot both be preserved. We present a new scheme that allows for
Externí odkaz:
http://arxiv.org/abs/2305.11220