Zobrazeno 1 - 10
of 3 768
pro vyhledávání: '"Langmann, A"'
We introduce a multi-band BCS free energy functional and prove that for a multi-band superconductor the effect of inter-band coupling can only increase the critical temperature, irrespective of its attractive or repulsive nature and its strength. Fur
Externí odkaz:
http://arxiv.org/abs/2409.17297
Autor:
Hallnäs, Martin, Langmann, Edwin
We discuss elliptic quantum Calogero-Moser-Sutherland models, including their relativistic generalizations due to Ruijsenaars and van Diejen, and the relations of these models to classes of special functions developed and explored in recent and on-go
Externí odkaz:
http://arxiv.org/abs/2408.05821
Existing approaches to trajectory planning for autonomous racing employ sampling-based methods, generating numerous jerk-optimal trajectories and selecting the most favorable feasible trajectory based on a cost function penalizing deviations from an
Externí odkaz:
http://arxiv.org/abs/2403.18643
Autor:
Langmann, E., Lenells, J.
We study the 3D anisotropic Hubbard model on a cubic lattice with hopping parameter $t$ in the $x$- and $y$-directions and a possibly different hopping parameter $t_z$ in the $z$-direction; this model interpolates between the 2D and 3D Hubbard models
Externí odkaz:
http://arxiv.org/abs/2403.14768
Interaction-aware trajectory planning is crucial for closing the gap between autonomous racing cars and human racing drivers. Prior work has applied game theory as it provides equilibrium concepts for non-cooperative dynamic problems. With this contr
Externí odkaz:
http://arxiv.org/abs/2402.01918
We study the algebraic structure of electron density operators in gapless Weyl fermion systems in $d=3,5,7,\cdots$ spatial dimensions and in topological insulators (without any protecting symmetry) in $d=4,6,8,\cdots$ spatial dimensions. These system
Externí odkaz:
http://arxiv.org/abs/2401.09683
Autor:
de Woul, Jonas, Langmann, Edwin
An effective quantum field theory of the 2D Hubbard model on a square lattice near half-filling is presented and studied. This effective model describes so-called nodal and antinodal fermions, and it is derived from the lattice model using a certain
Externí odkaz:
http://arxiv.org/abs/2309.11936
Autor:
Langmann, Edwin, Triola, Christopher
Publikováno v:
Phys. Rev. B 108, 104503 (2023)
We study analytic solutions to the Bardeen-Cooper-Schrieffer (BCS) gap equation for isotropic superconductors with finite-range interaction potentials over the full range of temperatures from absolute zero to the superconducting critical temperature,
Externí odkaz:
http://arxiv.org/abs/2306.01057
Autor:
Melin, Valdemar, Langmann, Edwin
We present an exact closed-form expression for the propagator of the Calogero model, i.e., for the integral kernel of the time evolution operator of the quantum many-body system on the real line with an external harmonic potential and inverse-square
Externí odkaz:
http://arxiv.org/abs/2303.07231
Autor:
Ana-Lucia Mayén, Mirna Sabra, Elom K. Aglago, Gabriel Perlemuter, Cosmin Voican, Ines Ramos, Charlotte Debras, Jessica Blanco, Vivian Viallon, Pietro Ferrari, Anja Olsen, Anne Tjønneland, Fie Langmann, Christina C. Dahm, Joseph Rothwell, Nasser Laouali, Chloé Marques, Matthias B. Schulze, Verena Katzke, Rudolf Kaaks, Domenico Palli, Alessandra Macciotta, Salvatore Panico, Rosario Tumino, Claudia Agnoli, Marta Farràs, Esther Molina-Montes, Pilar Amiano, María-Dolores Chirlaque, Jesús Castilla, Mårten Werner, Stina Bodén, Alicia K. Heath, Kostas Tsilidis, Dagfinn Aune, Elisabete Weiderpass, Heinz Freisling, Marc J. Gunter, Mazda Jenab
Publikováno v:
BMC Medicine, Vol 22, Iss 1, Pp 1-14 (2024)
Abstract Background Non-alcoholic fatty liver disease (NAFLD) and metabolic syndrome (MetS) are implicated in the aetiology of non-communicable diseases. Our study aimed to evaluate associations between NAFLD and MetS with overall and cause-specific
Externí odkaz:
https://doaj.org/article/cefcd49cb35149db840cc628e9678f87
