Zobrazeno 1 - 10
of 135
pro vyhledávání: '"Garcia Ripoll, Juan José"'
We introduce a variational algorithm based on Matrix Product States that is trained by minimizing a generalized free energy defined using Tsallis entropy instead of the standard Gibbs entropy. As a result, our model can generate the probability distr
Externí odkaz:
http://arxiv.org/abs/2409.08352
This research focuses on solving time-dependent partial differential equations (PDEs), in particular the time-dependent Schr\"odinger equation, using matrix product states (MPS). We propose an extension of Hermite Distributed Approximating Functional
Externí odkaz:
http://arxiv.org/abs/2409.02916
Autor:
Rodríguez-Aldavero, Juan José, García-Molina, Paula, Tagliacozzo, Luca, García-Ripoll, Juan José
This work explores the representation of univariate and multivariate functions as matrix product states (MPS), also known as quantized tensor-trains (QTT). It proposes an algorithm that employs iterative Chebyshev expansions and Clenshaw evaluations
Externí odkaz:
http://arxiv.org/abs/2407.09609
In this article, we consider a realistic waveguide implementation of a quantum network that serves as a testbed to show how to maximize the storage and manipulation of quantum information in QED setups. We analyze two approaches using wavepacket engi
Externí odkaz:
http://arxiv.org/abs/2403.12222
Publikováno v:
Front. Quantum Sci. Technol. 3, 1321264 (2024)
The Quantum Approximate Optimization Algorithm (QAOA) is an algorithm originally proposed to find approximate solutions to Combinatorial Optimization problems on quantum computers. However, the algorithm has also attracted interest for sampling purpo
Externí odkaz:
http://arxiv.org/abs/2310.09172
We study the spin-glass transition in several Ising models of relevance for quantum annealers. We extract the spin-glass critical temperature by extrapolating the pseudo-critical properties obtained with Replica-Exchange Monte-Carlo for finite-size s
Externí odkaz:
http://arxiv.org/abs/2307.13065
Autor:
Roda-Llordes, Marc, Candoli, Davide, Grochowski, Piotr T., Riera-Campeny, Andreu, Agrenius, Thomas, García-Ripoll, Juan José, Gonzalez-Ballestero, Carlos, Romero-Isart, Oriol
We introduce a numerical method to simulate nonlinear open quantum dynamics of a particle in situations where its state undergoes significant expansion in phase space while generating small quantum features at the phase-space Planck scale. Our approa
Externí odkaz:
http://arxiv.org/abs/2306.09083
An actively managed portfolio almost never beats the market in the long term. Thus, many investors often resort to passively managed portfolios whose aim is to follow a certain financial index. The task of building such passive portfolios aiming also
Externí odkaz:
http://arxiv.org/abs/2303.13282
This work discusses the solution of partial differential equations (PDEs) using matrix product states (MPS). The study focuses on the search for the lowest eigenstates of a Hamiltonian equation, for which five algorithms are introduced: imaginary-tim
Externí odkaz:
http://arxiv.org/abs/2303.09430
Publikováno v:
PRX Quantum 4, 030326 (2023)
Quadratic light-matter interactions are nonlinear couplings such that quantum emitters interact with photonic or phononic modes exclusively via the exchange of excitation pairs. Implementable with atomic and solid-state systems, these couplings lead
Externí odkaz:
http://arxiv.org/abs/2303.07382