Zobrazeno 1 - 10
of 95
pro vyhledávání: '"Delgado, Aldo"'
In this work, we propose a machine learning approach to address one aspect of the quantum marginal problem: finding a global density matrix compatible with a given set of quantum marginals. Our method involves combining a quantum marginal imposition
Externí odkaz:
http://arxiv.org/abs/2410.11145
Autor:
Rojas-Rojas, Santiago, Muñoz, Camila, Barriga, Edgar, Solano, Pablo, Delgado, Aldo, Hermann-Avigliano, Carla
We present analytic solutions to the evolution in generalized tight-binding models, which consider complex first-neighbor couplings with equal amplitude and arbitrary phases. Our findings provide a powerful tool for efficiently calculating expectatio
Externí odkaz:
http://arxiv.org/abs/2310.12366
Publikováno v:
New J. Phys. 26 013003, 2024
Optical nonlinearities are fundamental in several types of optical information processing protocols. However, the high laser intensities needed for implementing phase nonlinearities using conventional optical materials represent a challenge for nonli
Externí odkaz:
http://arxiv.org/abs/2309.12216
Publikováno v:
Quantum 8, 1244 (2024)
We present an analytical method to estimate pure quantum states using a minimum of three measurement bases in any finite-dimensional Hilbert space. This is optimal as two bases are insufficient to construct an informationally complete positive operat
Externí odkaz:
http://arxiv.org/abs/2305.08774
Autor:
Zambrano, Leonardo, Muñoz-Moller, Andrés Damián, Muñoz, Mario, Pereira, Luciano, Delgado, Aldo
The barren plateau phenomenon is one of the main obstacles to implementing variational quantum algorithms in the current generation of quantum processors. Here, we introduce a method capable of avoiding the barren plateau phenomenon in the variationa
Externí odkaz:
http://arxiv.org/abs/2304.13388
Publikováno v:
Quantum 7, 945 (2023)
The quantum switch is a quantum computational primitive that provides computational advantage by applying operations in a superposition of orders. In particular, it can reduce the number of gate queries required for solving promise problems where the
Externí odkaz:
http://arxiv.org/abs/2207.12997
Autor:
Gómez, Santiago, Gómez, Esteban S., Jiménez, Omar, Delgado, Aldo, Walborn, Stephen P., Lima, Gustavo
Publikováno v:
Scientific Reports 12, 17312 (2022)
The problem of non-orthogonal state discrimination underlies crucial quantum information tasks, such as cryptography and computing protocols. Therefore, it is decisive to find optimal scenarios for discrimination among quantum states. We experimental
Externí odkaz:
http://arxiv.org/abs/2204.06689
Autor:
Martínez, Daniel, Gómez, Esteban S., Cariñe, Jaime, Pereira, Luciano, Delgado, Aldo, Walborn, Stephen P., Tavakoli, Armin, Lima, Gustavo
Publikováno v:
Nature Physics (2022)
Generalised quantum measurements go beyond the textbook concept of a projection onto an orthonormal basis in Hilbert space. They are not only of fundamental relevance but have also an important role in quantum information tasks. However, it is highly
Externí odkaz:
http://arxiv.org/abs/2201.11455
Autor:
Triana, Johan F., Arias, Mauricio, Nishida, Jun, Muller, Eric, Wilcken, Roland, Johnson, Samuel C., Delgado, Aldo, Raschke, Markus B., Herrera, Felipe
Publikováno v:
J. Chem. Phys. 156, 124110, 2022
Nanoscale infrared (IR) resonators with sub-diffraction limited mode volumes and open geometries have emerged as new platforms for implementing cavity quantum electrodynamics (QED) at room temperature. The use of infrared (IR) nano-antennas and tip n
Externí odkaz:
http://arxiv.org/abs/2110.07371
Quantum tomography has become a key tool for the assessment of quantum states, processes, and devices. This drives the search for tomographic methods that achieve greater accuracy. In the case of mixed states of a single 2-dimensional quantum system
Externí odkaz:
http://arxiv.org/abs/2007.01398