Zobrazeno 1 - 10
of 24 781
pro vyhledávání: '"del Campo, A."'
Autor:
Massaro, Matteo, del Campo, Adolfo
We introduce a spatial form factor (SFF) for the characterization of spatial patterns associated with point processes. Specifically, the SFF is defined in terms of the averaged even Fourier transform of the distance between any pair of points. We foc
Externí odkaz:
http://arxiv.org/abs/2410.04816
We investigate the efficiency of approximate counterdiabatic driving (CD) in accelerating adiabatic passage through a first-order quantum phase transition. Specifically, we analyze a minimal spin-glass bottleneck model that is analytically tractable
Externí odkaz:
http://arxiv.org/abs/2410.02520
We introduce a quantum algorithm integrating counterdiabatic (CD) protocols with quantum Lyapunov control (QLC) to tackle combinatorial optimization problems. This approach offers versatility, allowing implementation as either a digital-analog or pur
Externí odkaz:
http://arxiv.org/abs/2409.12525
Autor:
Lozano-Martín, Daniel, Segovia, José J., Martín, M. Carmen, Fernández-Vicente, Teresa, del Campo, D.
Publikováno v:
The Journal of Chemical Thermodynamics Volume 102, 2016, Pages 348-356
The present work aims to measure speeds of sound $c$ in a biogas mixture of $CH_{4}$ + $N_{2}$ + $CO_{2}$ + $CO$, at $p$ = (1-12) MPa and $T$ = (273, 300 and 325) K, using a spherical acoustical resonator. The results are fitted to the virial acousti
Externí odkaz:
http://arxiv.org/abs/2409.10962
Autor:
Segovia, J J, Lozano-Martín, D, Martín, M C, Chamorro, C R, Villamañán, M A, Pérez, E, Izquierdo, C García, del Campo, D
Publikováno v:
Metrologia 54, 2017, 663-673
A new determination of the molar gas constant was performed from measurements of the speed of sound in argon at the triple point of water and extrapolation to zero pressure. A new resonant cavity was used. This is a triaxial ellipsoid whose walls are
Externí odkaz:
http://arxiv.org/abs/2409.10140
Autor:
Susial, Rodrigo, Gómez-Hernández, Ángel, Lozano-Martín, Daniel, del Campo, Dolores, Martín, M. Carmen, Segovia, José J.
Publikováno v:
The Journal of Chemical Thermodynamics Volume 135, 2019, Pages 124-132
The development of a novel technique based on a cylindrical microwave resonator for high pressure phase equilibrium determination is described. Electric permittivity or dielectric constant is a physical property that depends on temperature and pressu
Externí odkaz:
http://arxiv.org/abs/2409.08144
Autor:
Takahashi, Kazutaka, del Campo, Adolfo
Krylov subspace methods in quantum dynamics identify the minimal subspace in which a process unfolds. To date, their use is restricted to time evolutions governed by time-independent generators. We introduce a generalization valid for driven quantum
Externí odkaz:
http://arxiv.org/abs/2408.08383
We explore the near adiabatic dynamics in a non-Hermitian quantum many-body system by investigating a finite-time ramp of the imaginary vector potential in the interacting Hatano-Nelson model. The excess energy, the Loschmidt echo, and the density im
Externí odkaz:
http://arxiv.org/abs/2408.07122
We consider the optimal driving of the ground state of a many-body quantum system across a quantum phase transition in finite time. In this context, excitations caused by the breakdown of adiabaticity can be minimized by adjusting the schedule of the
Externí odkaz:
http://arxiv.org/abs/2407.09596
The spin-vector Monte Carlo model is widely used as a benchmark for the classicality of quantum annealers but severely restricts the time evolution. The spin-vector Langevin (SVL) model has been proposed and tested as an alternative, closely reproduc
Externí odkaz:
http://arxiv.org/abs/2407.09316