Zobrazeno 1 - 10
of 1 936
pro vyhledávání: '"A. Altland"'
Publikováno v:
Physical Review Research, Vol 6, Iss 1, p 013302 (2024)
The ground state of the toric code, that of the two-dimensional class D superconductor, and the partition sum of the two-dimensional Ising model are dual to each other. This duality is remarkable in as much as it connects systems commonly associated
Externí odkaz:
https://doaj.org/article/8ee062cd22a143b2bc717168032215b9
This work proposes a minimal model extending the duality between classical statistical spin systems and fermionic systems beyond the case of free fermions. A Jordan-Wigner transformation applied to a two-dimensional tensor network maps the partition
Externí odkaz:
http://arxiv.org/abs/2412.04216
The imposition of crystalline symmetries is known to lead to a rich variety of insulating and superconducting topological phases. These include higher-order topological phases and obstructed atomic limits with and without filling anomalies. We here c
Externí odkaz:
http://arxiv.org/abs/2412.01883
Autor:
Micklitz, Tobias, Altland, Alexander
Light propagation in random media is notorious for its resilience to (Anderson) wave localization. We here argue that in materials with slow helicity relaxation previously unnoticed principles of topology reinforce delocalization. We show that the ef
Externí odkaz:
http://arxiv.org/abs/2405.13277
The evolution of complex correlated quantum systems such as random circuit networks is governed by the dynamical buildup of both entanglement and entropy. We here introduce a real-time field theory approach -- essentially a fusion of the $G \Sigma$-f
Externí odkaz:
http://arxiv.org/abs/2404.10919
Autor:
Altland, Alexander, Kim, Kun Woo, Micklitz, Tobias, Rezaei, Maedeh, Sonner, Julian, Verbaarschot, Jacobus J. M.
In recent years, the physics of many-body quantum chaotic systems close to their ground states has come under intensified scrutiny. Such studies are motivated by the emergence of model systems exhibiting chaotic fluctuations throughout the entire spe
Externí odkaz:
http://arxiv.org/abs/2403.13516
Publikováno v:
Physical Review X, Vol 11, Iss 4, p 041004 (2021)
A wave function subject to unitary time evolution and exposed to measurements undergoes pure state dynamics, with deterministic unitary and probabilistic measurement-induced state updates, defining a quantum trajectory. For many-particle systems, the
Externí odkaz:
https://doaj.org/article/30c4f6be59044d4ba5e08018f1edde87
Autor:
Basilewitsch, Daniel, Börner, Simon-Dominik, Berke, Christoph, Altland, Alexander, Trebst, Simon, Koch, Christiane P.
Transmon qubits arise from the quantization of nonlinear resonators, systems that are prone to the buildup of strong, possibly chaotic, fluctuations. Such instabilities will likely affect fast gate operations which involve the transient population of
Externí odkaz:
http://arxiv.org/abs/2311.14592
Publikováno v:
Phys. Rev. Research 6, 013302 (2024)
The ground state of the toric code, that of the two-dimensional class D superconductor, and the partition sum of the two-dimensional Ising model are dual to each other. This duality is remarkable inasmuch as it connects systems commonly associated to
Externí odkaz:
http://arxiv.org/abs/2309.13118
Autor:
Altland, Alexander, Brouwer, Piet W., Dieplinger, Johannes, Foster, Matthew S., Moreno-Gonzalez, Mateo, Trifunovic, Luka
Publikováno v:
Phys. Rev. X 14, 011057 (2024)
Topological insulators and superconductors support extended surface states protected against the otherwise localizing effects of static disorder. Specifically, in the Wigner-Dyson insulators belonging to the symmetry classes A, AI, and AII, a band of
Externí odkaz:
http://arxiv.org/abs/2308.12931