Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Sebastian Paeckel"'
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-7 (2023)
Abstract The large practical potential of exotic quantum states is often precluded by their notorious fragility against external perturbations or temperature. Here, we introduce a mechanism stabilizing a one-dimensional quantum many-body phase exploi
Externí odkaz:
https://doaj.org/article/1964b0d369b149f796ffff19694ad2f1
Autor:
Ellen Fogh, Bastian Klemke, Manfred Reehuis, Philippe Bourges, Christof Niedermayer, Sonja Holm-Dahlin, Oksana Zaharko, Jürg Schefer, Andreas B. Kristensen, Michael K. Sørensen, Sebastian Paeckel, Kasper S. Pedersen, Rasmus E. Hansen, Alexandre Pages, Kimmie K. Moerner, Giulia Meucci, Jian-Rui Soh, Alessandro Bombardi, David Vaknin, Henrik. M. Rønnow, Olav F. Syljuåsen, Niels B. Christensen, Rasmus Toft-Petersen
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-9 (2023)
Abstract Control of magnetization and electric polarization is attractive in relation to tailoring materials for data storage and devices such as sensors or antennae. In magnetoelectric materials, these degrees of freedom are closely coupled, allowin
Externí odkaz:
https://doaj.org/article/a495e3f8382b4032bb3e9a8730ad3cc7
Publikováno v:
SciPost Physics, Vol 3, Iss 5, p 035 (2017)
We present an algorithmic construction scheme for matrix-product-operator (MPO) representations of arbitrary $U(1)$-invariant operators whenever there is an expression of the local structure in terms of a finite-states machine (FSM). Given a set o
Externí odkaz:
https://doaj.org/article/9310d4fd88664e5ea6a21e0e5c0bfc4e
Publikováno v:
SciPost Physics, Vol 10, Iss 3, p 058 (2021)
Quantum lattice models with large local Hilbert spaces emerge across various fields in quantum many-body physics. Problems such as the interplay between fermions and phonons, the BCS-BEC crossover of interacting bosons, or decoherence in quantum simu
Externí odkaz:
https://doaj.org/article/d9b9c1e76d3846d6864ec7b405fdf288
Autor:
Max Bramberger, Benjamin Bacq-Labreuil, Martin Grundner, Silke Biermann, Ulrich Schollwöck, Sebastian Paeckel, Benjamin Lenz
Publikováno v:
SciPost Physics. 14
We investigate the tetragonal phase of the binary transition metal oxide CuO (t-CuO) within the context of cellular dynamical mean-field theory. Due to its strong antiferromagnetic correlations and simple structure, analysing the physics of t-CuO is
Autor:
Sebastian Paeckel, Ulrich Schollwöck, Martin Grundner, Yihe Xu, Sam Mardazad, Xuexiao Yang, Haibo Ma
In this work we study singlet fission in tetracene para-dimers, covalently linked by a phenyl group. In contrast to most previous works, we account for the full quantum dynamics of the combined excitonic and vibrational system. For our simulations we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::418ae2c593215d1ebf43d2e0e0524a43
Publikováno v:
Physical Review B. 102
We describe the formation of charge- and spin-density patterns induced by spin-selective photoexcitations of interacting fermionic systems in the presence of a microstructure. As an example, we consider a one-dimensional Hubbard-like system with a pe
Publikováno v:
SciPost Physics
SciPost Physics, Vol 10, Iss 3, p 058 (2021)
SciPost Physics, Vol 10, Iss 3, p 058 (2021)
Quantum lattice models with large local Hilbert spaces emerge across various fields in quantum many-body physics. Problems such as the interplay between fermions and phonons, the BCS-BEC crossover of interacting bosons, or decoherence in quantum simu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c39d91ed6e948ed39064bfb0d7b7b229
http://arxiv.org/abs/2008.08466
http://arxiv.org/abs/2008.08466
Autor:
Dirk Manske, Alexander Osterkorn, Salvatore R. Manmana, Thomas Köhler, Sebastian Paeckel, Benedikt Fauseweh
Publikováno v:
Physical Review B
Recent pump-probe experiments on underdoped cuprates and similar systems suggest the existence of a transient superconducting state above $\mathrm{T}_c$. This poses the question how to reliably identify the emergence of long-range order, in particula
Autor:
Salvatore R. Manmana, Andreas Swoboda, Sebastian Paeckel, Ulrich Schollwöck, Claudius Hubig, Thomas Köhler
Publikováno v:
Annals of Physics
Matrix-product states have become the de facto standard for the representation of one-dimensional quantum many body states. During the last few years, numerous new methods have been introduced to evaluate the time evolution of a matrix-product state.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47b0f35d521569eff438c53391d82ece
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-401171
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-401171