Zobrazeno 1 - 10
of 101
pro vyhledávání: '"Jacek Dziarmaga"'
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
The maximum precision achievable in quantum metrology is in general tractable only in few-body scenarios or in case of uncorrelated local noise. Here, the authors show a tensor networks method to compute such bounds in cases with large number of prob
Externí odkaz:
https://doaj.org/article/45796c1205fa42c98c0d2959f69d183a
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033183 (2020)
The dynamical evolution of an inhomogeneous ultracold atomic gas quenched at different controllable rates through the Bose-Einstein condensation phase transition is studied numerically in the premise of a recent experiment in an anisotropic harmonic
Externí odkaz:
https://doaj.org/article/912340e094874afba18815961035d6e8
Autor:
Jacek Dziarmaga, Jakub M. Mazur
Quantum simulations of the Bose-Hubbard model (BHM) at commensurate filling can follow spreading of correlations after a sudden quench for times long enough to estimate their propagation velocities. In this work we perform tensor network simulation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c26572f69e40df18089d0d5c3b3dfe8
https://ruj.uj.edu.pl/xmlui/handle/item/310960
https://ruj.uj.edu.pl/xmlui/handle/item/310960
Publikováno v:
Physical Review Letters. 129
It is now widely accepted that quenches through the critical region of quantum phase transitions result in post-transition states populated with topological defects -- analogs of the classical topological defects. However, consequences of the very no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f27433e63c64060fb086692fc7da22c8
https://doi.org/10.1103/physrevlett.129.260407
https://doi.org/10.1103/physrevlett.129.260407
Autor:
Jacek Dziarmaga
Time evolution of an infinite 2D many body quantum lattice system can be described by the Suzuki-Trotter decomposition applied to the infinite projected entangled pair state (iPEPS). Each Trotter gate increases the bond dimension of the tensor networ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7a5b3bcbf2fd57dd5e70e593ea8d9d6a
http://arxiv.org/abs/2205.11067
http://arxiv.org/abs/2205.11067
Autor:
Marek Rams, Jacek Dziarmaga
Linear quench of the transverse field drives the quantum Ising chain across a quantum critical point from the paramagnetic to the ferromagnetic phase. We focus on normal and anomalous quadratic correlators between fermionic kink creation and annihila
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::11db07a4894be31302363f4ab1b4cc09
http://arxiv.org/abs/2205.08591
http://arxiv.org/abs/2205.08591
Autor:
Jacek Dziarmaga
The Heisenberg antiferromagnet with discrete disorder on an infinite square lattice is evolved in time from an initial N\'eel state. The simulation is performed with the neighborhood tensor update (NTU) algorithm for an infinite projected entangled p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::19e09b06270d8056f53229792a87094e
https://ruj.uj.edu.pl/xmlui/handle/item/288350
https://ruj.uj.edu.pl/xmlui/handle/item/288350
Publikováno v:
Science Advances
The quantum Kibble-Zurek mechanism (QKZM) predicts universal dynamical behavior near the quantum phase transitions (QPTs). It is now well understood for the one-dimensional quantum matter. Higher-dimensional systems, however, remain a challenge, comp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ac98c5c328b616bd37edb1a0883280e9
https://ruj.uj.edu.pl/xmlui/handle/item/300497
https://ruj.uj.edu.pl/xmlui/handle/item/300497
Publikováno v:
Physical Review B. 103
The two-dimensional infinite projected entangled pair state tensor network is evolved in imaginary time with the full update (FU) algorithm to simulate the Shastry-Sutherland model in a magnetic field at finite temperature directly in the thermodynam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ae9e1fe2630cdbac142b3cf02a5e8bc4
https://doi.org/10.1103/physrevb.103.075113
https://doi.org/10.1103/physrevb.103.075113