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Št. zadetkov: 8
Integrable matrix models in discrete space-time
Žiga Krajnik, Enej Ilievski, Tomaž Prosen
Izvirni znanstveni članek
Oznake: dinamični sistemi;teoretična fizika;dynamical systems;theoretical physics;
We introduce a class of integrable dynamical systems of interacting classical matrixvalued fields propagating on a discrete space-time lattice, realized as many-body circuits built from elementary symplectic two-body maps. The models provide an efficient integrable Trotterization of non- relativisti ...
Leto: 2020 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Undular diffusion in nonlinear sigma models
Žiga Krajnik, Enej Ilievski, Tomaž Prosen
Izvirni znanstveni članek
Oznake: statistična fizika;nelinearna dinamika;difuzija;statistical physics;nonlinear dynamics;diffusion;
We discuss general features of charge transport in nonrelativistic classical field theories invariant under non-Abelian unitary Lie groups by examining the full structure of two-point dynamical correlation functions in grand-canonical ensembles at finite charge densities (polarized ensembles). Upon ...
Leto: 2020 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Makroskopske fluktuacije toka solitonov v reverzibilnem celičnem avtomatu pravilo 54
Luka Paljk, Marko Žnidarič, Enej Ilievski
Magistrsko delo
Oznake: neravnovesna statistična fizika;solitoni;RCA54;integrabilnost;posplošena hidrodinamika;transportne fluktuacije;balistična fluktuacijska teorija;fluktuacijska zveza Gallavotti-Cohen;
V magistrskem delu obravnavamo makroskopske fluktuacije transporta solitonov v reverzibilnem celičnem avtomatu pravilo 54, ki predstavlja enega izmed najbolj preprostih modelov integrabilne solitonske dinamike. Za opis makroskopske dinamike kiralnih solitonov uporabimo računsko ogrodje posplošene hi ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Anisotropic Landau-Lifshitz model in discrete space-time
Žiga Krajnik, Enej Ilievski, Tomaž Prosen, Vincent Pasquier
Izvirni znanstveni članek
Oznake: teoretična fizika;integrabilni modeli;theoretical physics;integrable models;
Weconstruct an integrable lattice model of classical interacting spins in discrete spacetime, representing a discrete-time analogue of the lattice Landau-Lifshitz ferromagnet with uniaxial anisotropy. As an application we use this explicit discrete symplectic integration scheme to compute the spin D ...
Leto: 2021 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Dynamical criticality of magnetization transfer in integrable spin chains
Žiga Krajnik, Johannes Schmidt, Enej Ilievski, Tomaž Prosen
Izvirni znanstveni članek
Oznake: statistična mehanika;statistical mechanics;
Recent studies have found that fluctuations of magnetization transfer in integrable spin chains violate the central limit property. Here, we revisit the problem of anomalous counting statistics in the Landau-Lifshitz field theory by specializing to two distinct anomalous regimes featuring a dynamica ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Superdiffusion in one-dimensional quantum lattice models
Enej Ilievski, Jacopo De Nardis, Marko Medenjak, Tomaž Prosen
Izvirni znanstveni članek
Oznake: kvantna statistična mehanika;neravnovesna statistična mehanika;difuzija;quantum statistical mechanics;nonequilibrium statistical mechanics;diffusion;
We identify a class of one-dimensional spin and fermionic lattice models which display diverging spin and charge diffusion constants, including several paradigmatic models of exactly solvable strongly correlated many-body dynamics such as the isotropic Heisenberg spin chains, the FermiHubbard model, ...
Leto: 2018 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Universal anomalous fluctuations in charged single-file systems
Žiga Krajnik, Johannes Schmidt, Vincent Pasquier, Tomaž Prosen, Enej Ilievski
Izvirni znanstveni članek
Oznake: statistična fizika;statistical physics;
Introducing a general class of one-dimensional single-file systems (meaning that particle crossings are prohibited) of interacting hardcore particles with internal degrees of freedom (called charge), we exhibit a dynamical universality reflected in anomalous statistical properties of macroscopic flu ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Quantum many-body spin ratchets
Lenart Zadnik, Marko Ljubotina, Žiga Krajnik, Enej Ilievski, Tomaž Prosen
Izvirni znanstveni članek
Oznake: neravnovesna statistična mehanika;kvantna mehanika;večdelčni sistemi;nonequilibrium statistical mechanics;quantum mechanics;many-body systems;
Introducing a class of SU(2) invariant quantum unitary circuits generating chiral transport, we examine the role of broken space-reflection and time-reversal symmetries on spin-transport properties. Upon adjusting parameters of local unitary gates, the dynamics can be either chaotic or integrable. T ...
Leto: 2024 Vir: Fakulteta za matematiko in fiziko (UL FMF)
Št. zadetkov: 8
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