Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Dechoum,Kaled"'
Publikováno v:
Revista Brasileira de Ensino de F\'isica (2021)
Here we present some results that would possibly have attracted the attention of the physics community in the early days of quantum mechanics in such a way that its development could have been different from what we see today. We will first present a
Externí odkaz:
http://arxiv.org/abs/2111.11939
Publikováno v:
Phys. Rev. A 102, 033708 (2020)
We develop the formal approach to the angular spectrum transfer in parametric down-conversion that allows pumping with a structured beam. The scheme is based on an entangled photon source pumped by a laser beam structured with a vector-vortex polariz
Externí odkaz:
http://arxiv.org/abs/2007.03883
Publikováno v:
Phys. Rev. A 96, 053856 (2017)
We investigate the non linear mixing of orbital angular momentum in type II second harmonic generation with arbitrary topological charges imprinted on two orthogonally polarized beams. Starting from the basic nonlinear equations for the interacting f
Externí odkaz:
http://arxiv.org/abs/1707.06358
Autor:
Pinheiro da Silva Braian, Buono Wagner T., Pereira Leonardo J., Tasca Daniel S., Dechoum Kaled, Khoury Antonio Z.
Publikováno v:
Nanophotonics, Vol 11, Iss 4, Pp 771-778 (2021)
We demonstrate the spin to orbital angular momentum transfer in frequency upconversion with structured light beams. A vector vortex is coupled to a circularly polarized Gaussian beam in noncollinear second harmonic generation under type-II phase matc
Externí odkaz:
https://doaj.org/article/7a90e620664742a48aa1b9a03a182612
Publikováno v:
JOSAB 33, 871-883 (2016)
We study the nondegenerate optical parametric oscillator in a planar interferometer near threshold, where critical phenomena are expected. These phenomena are associated with nonequilibrium quantum dynamics that are known to lead to quadrature entang
Externí odkaz:
http://arxiv.org/abs/1506.07218
Autor:
Lara, Vitor, Dechoum, Kaled
When a circular loop composed by a RLC is put to oscillate, the oscillation will eventually vanish in an exponentially decaying current, even considering superconducting wires, due to the emission of electric and magnetic dipole radiation. In this wo
Externí odkaz:
http://arxiv.org/abs/1410.0618
Autor:
Ranade, Kedar S., Dechoum, Kaled
Quantum effects and, in particular, entanglement are by now widely recognized in all areas of physics and related fields. However, we feel that the precise notion of entanglement---though mathematically well-defined---still generates confusion even i
Externí odkaz:
http://arxiv.org/abs/1308.3098
Autor:
Villar, Alessandro S., Cassemiro, Katiuscia N., Dechoum, Kaled, Khoury, Antonio Z., Martinelli, Marcelo, Nussenzveig, Paulo
We investigate entanglement in the above-threshold Optical Parametric Oscillator, both theoretically and experimentally, and discuss its potential applications to quantum information. The fluctuations measured in the subtraction of signal and idler a
Externí odkaz:
http://arxiv.org/abs/quant-ph/0610208
Autor:
Drummond, Peter D., Dechoum, Kaled
We analyze the critical quantum fluctuations in a coherently driven planar optical parametric oscillator. We show that the presence of transverse modes combined with quantum fluctuations changes the behavior of the `quantum image' critical point. Thi
Externí odkaz:
http://arxiv.org/abs/quant-ph/0506055
Publikováno v:
In Annals of Physics September 2012 327(9):2112-2124