Zobrazeno 1 - 10
of 144
pro vyhledávání: '"Quesada, Nicolás"'
We investigate the etching characteristics of PIN-PMN-PT crystals, exploring various wet etching solutions, reactive ion etching gases, and ion beam etching. The etch rate and surface roughness are systematically measured for each method. A process f
Externí odkaz:
http://arxiv.org/abs/2409.04586
Autor:
Thekkadath, Guillaume, Houde, Martin, England, Duncan, Bustard, Philip, Bouchard, Frédéric, Quesada, Nicolás, Sussman, Ben
Strongly-driven nonlinear optical processes such as spontaneous parametric down-conversion and spontaneous four-wave mixing can produce multiphoton nonclassical beams of light which have applications in quantum information processing and sensing. In
Externí odkaz:
http://arxiv.org/abs/2405.07909
Validation of quantum advantage claims in the context of Gaussian Boson Sampling (GBS) currently relies on providing evidence that the experimental samples genuinely follow their corresponding ground truth, i.e., the theoretical model of the experime
Externí odkaz:
http://arxiv.org/abs/2403.15339
In this note we summarize four important matrix decompositions commonly used in quantum optics, namely the Takagi/Autonne, Bloch-Messiah/Euler, Iwasawa, and Williamson decompositions. The first two of these decompositions are specialized versions of
Externí odkaz:
http://arxiv.org/abs/2403.04596
Autor:
Houde, Martin, Quesada, Nicolás
Perfect inline squeezers are both spectrally pure and have identical input and output temporal modes, allowing one to squeeze an arbitrary input quantum state in the sole input mode on which the device acts, while the quantum states of any other mode
Externí odkaz:
http://arxiv.org/abs/2401.10197
Autor:
Chinni, Karthik, Quesada, Nicolás
We study the dynamics of the pump mode in the down-conversion Hamiltonian using the cumulant expansion method, perturbation theory, and the full numerical simulation of systems with a pump mean photon number of up to one hundred thousand. We particul
Externí odkaz:
http://arxiv.org/abs/2312.09239
Publikováno v:
PRX Quantum 5, 020341 (2024)
We present a quantum-inspired classical algorithm that can be used for graph-theoretical problems, such as finding the densest $k$-subgraph and finding the maximum weight clique, which are proposed as applications of a Gaussian boson sampler. The mai
Externí odkaz:
http://arxiv.org/abs/2302.00536
Autor:
Cardin, Yanic, Quesada, Nicolás
We develop closed-form expressions for the moments and cumulants of Gaussian states when measured in the photon-number basis. We express the photon-number moments of a Gaussian state in terms of the loop Hafnian, a function that when applied to a $(0
Externí odkaz:
http://arxiv.org/abs/2212.06067
Autor:
Houde, Martin, Quesada, Nicolás
Publikováno v:
AVS Quantum Sci. 5, 011404 (2023)
We study theoretically how the brightness of pumps, with fixed profiles, affects the temporal mode structure of squeezed states generated by fixed parametric waveguided sources. We find that the temporal modes of these squeezed states can be partiall
Externí odkaz:
http://arxiv.org/abs/2209.13491
Publikováno v:
SciPost Phys. 17, 082 (2024)
We propose a framework to design and optimize generic photonic quantum circuits composed of Gaussian objects (pure and mixed Gaussian states, Gaussian unitaries, Gaussian channels, Gaussian measurements) as well as non-Gaussian effects such as photon
Externí odkaz:
http://arxiv.org/abs/2209.06069