Zobrazeno 1 - 10
of 280
pro vyhledávání: '"Sierant P"'
Quantum state complexity metrics, such as anticoncentration and magic, offer key insights into many-body physics, information scrambling, and quantum computing. Anticoncentration and equilibration of magic under dynamics of random quantum circuits oc
Externí odkaz:
http://arxiv.org/abs/2412.10229
Autor:
Bhattacharjee, Sourav, Sierant, Piotr, Dudyński, Marek, Wehr, Jan, Zakrzewski, Jakub, Lewenstein, Maciej
We examine the onset of Anderson localization in three-dimensional systems with structural disorder in the form of lattice irregularities and in the absence of any on-site disordered potential. Analyzing two models with distinct types of lattice regu
Externí odkaz:
http://arxiv.org/abs/2411.10247
Due to a phenomenon of many-body localization (MBL), the strong disorder may significantly slow down or even completely hinder the thermalization of quantum many-body systems. A sufficiently deep quasiperiodic potential may also inhibit thermalizatio
Externí odkaz:
http://arxiv.org/abs/2408.02590
Magic state resources or non-stabilizerness quantify the beyond-Clifford operations necessary for universal quantum computing. How rapidly are magic resources generated by generic many-body dynamics under constraints of locality? We address this prob
Externí odkaz:
http://arxiv.org/abs/2407.03929
Many-body localization (MBL) hinders the thermalization of quantum many-body systems in the presence of strong disorder. In this work, we study the MBL regime in bond-disordered spin-1/2 XXZ spin chain, finding the multimodal distribution of entangle
Externí odkaz:
http://arxiv.org/abs/2405.10062
Quantum Algorithms for Inverse Participation Ratio Estimation in multi-qubit and multi-qudit systems
Inverse Participation Ratios (IPRs) and the related Participation Entropies quantify the spread of a quantum state over a selected basis of the Hilbert space, offering insights into the equilibrium and non-equilibrium properties of the system. In thi
Externí odkaz:
http://arxiv.org/abs/2405.03338
Autor:
Turkeshi, Xhek, Sierant, Piotr
Unitary dynamics of a quantum system initialized in a selected basis state yields, generically, a state that is a superposition of all the basis states. This process, associated with the quantum information scrambling and intimately tied to the resou
Externí odkaz:
http://arxiv.org/abs/2404.10725
Statistical mechanics provides a framework for describing the physics of large, complex many-body systems using only a few macroscopic parameters to determine the state of the system. For isolated quantum many-body systems, such a description is achi
Externí odkaz:
http://arxiv.org/abs/2403.07111
Autor:
Altshuler, Boris L., Kravtsov, Vladimir E., Scardicchio, Antonello, Sierant, Piotr, Vanoni, Carlo
We discuss the dependence of the critical properties of the Anderson model on the dimension $d$ in the language of $\beta$-function and renormalization group recently introduced in Ref.[arXiv:2306.14965] in the context of Anderson transition on rando
Externí odkaz:
http://arxiv.org/abs/2403.01974
Publikováno v:
Phys. Rev. B 109, 134202 (2024)
We study the XXZ model with a random magnetic field in contact with a weakly disordered spin chain, acting as a finite thermal bath. We revise Fermi's golden rule description of the interaction between the thermal bath and the XXZ spin chain, contras
Externí odkaz:
http://arxiv.org/abs/2402.01362