Zobrazeno 1 - 10
of 1 142
pro vyhledávání: '"Bañuls, P."'
Parton distribution functions (PDFs) describe universal properties of bound states and allow us to calculate scattering amplitudes in processes with large momentum transfer. Calculating PDFs involves the evaluation of matrix elements with a Wilson li
Externí odkaz:
http://arxiv.org/abs/2409.16996
State-of-the-art quantum simulators permit local temporal control of interactions and midcircuit readout. These capabilities open the way towards the exploration of intriguing nonequilibrium phenomena. We illustrate this with a kinetically constraine
Externí odkaz:
http://arxiv.org/abs/2408.09872
Autor:
Bañuls, Mari Carmen, Cichy, Krzysztof, Hung, Hao-Ti, Kao, Ying-Jer, Lin, C. -J. David, Singh, Amit
Using tensor network methods, we simulate the real-time evolution of the lattice Thirring model quenched out of equilibrium in both the critical and massive phases, and study the appearance of dynamical quantum phase transitions, as non-analyticities
Externí odkaz:
http://arxiv.org/abs/2407.11295
We present a numerical method to simulate a system of multiple emitters coupled to a non-interacting bath, in any parameter regime. Our method relies on a Block Lanczos transformation that maps the whole system onto a strip geometry, whose width is g
Externí odkaz:
http://arxiv.org/abs/2407.10140
We study the non-equilibrium dynamics of the dissipative quantum East model via numerical tensor networks. We use matrix product states to represent evolution under quantum-jump unravellings for sizes beyond those accessible to exact diagonalisation.
Externí odkaz:
http://arxiv.org/abs/2404.03750
Publikováno v:
Phys. Rev. B 110, 134322 (2024)
We study the dynamics and thermalization of the Fredkin spin chain, a system with local three-body interactions, particle conservation and explicit kinetic constraints. We consider deformations away from its stochastic point in order to tune between
Externí odkaz:
http://arxiv.org/abs/2403.03986
Tensor network methods have demonstrated their suitability for the study of equilibrium properties of lattice gauge theories, even close to the continuum limit. We use them in an out-of-equilibrium scenario, much less explored so far, by simulating t
Externí odkaz:
http://arxiv.org/abs/2402.18429
Publikováno v:
Phys. Rev. Lett. 133, 010601 (2024)
Nonstabilizerness, also known as ``magic'', stands as a crucial resource for achieving a potential advantage in quantum computing. Its connection to many-body physical phenomena is poorly understood at present, mostly due to a lack of practical metho
Externí odkaz:
http://arxiv.org/abs/2401.16498
Publikováno v:
Quantum 8, 1389 (2024)
We introduce a quantum algorithm to efficiently prepare states with a small energy variance at the target energy. We achieve it by filtering a product state at the given energy with a Lorentzian filter of width $\delta$. Given a local Hamiltonian on
Externí odkaz:
http://arxiv.org/abs/2312.13892
Publikováno v:
Phys. Rev. B 109, 134304 (2024)
Energy filter methods in combination with quantum simulation can efficiently access the properties of quantum many-body systems at finite energy densities [Lu et al. PRX Quantum 2, 020321 (2021)]. Classically simulating this algorithm with tensor net
Externí odkaz:
http://arxiv.org/abs/2312.00736