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pro vyhledávání: '"Hahn Thomas"'
Variational techniques have been recently developed to find tighter bounds on the von Neumann entropy in a completely device-independent (DI) setting. This, in turn, has led to significantly improved key rates of DI protocols, in both the asymptotic
Externí odkaz:
http://arxiv.org/abs/2408.12313
The entropy accumulation theorem, and its subsequent generalized version, is a powerful tool in the security analysis of many device-dependent and device-independent cryptography protocols. However, it has the drawback that the finite-size bounds it
Externí odkaz:
http://arxiv.org/abs/2405.05912
Autor:
Klimin, Serghei N., Tempere, Jacques, Houtput, Matthew, Ragni, Stefano, Hahn, Thomas, Franchini, Cesare, Mishchenko, Andrey S.
Publikováno v:
Phys. Rev. B 110, 075107 (2024)
Including the effect of lattice anharmonicity on electron-phonon interactions has recently garnered attention due to its role as a necessary and significant component in explaining various phenomena, including superconductivity, optical response, and
Externí odkaz:
http://arxiv.org/abs/2403.18019
Publikováno v:
Solid State Nuclear Magnetic Resonance 132, 101936 (2024)
A recently developed dynamic mean-field theory for disordered spins (spinDMFT) is shown to capture the spin dynamics of nuclear spins very well. The key quantities are the spin autocorrelations. In order to compute the free induction decay (FID), pai
Externí odkaz:
http://arxiv.org/abs/2403.10465
Autor:
Ragni, Stefano, Hahn, Thomas, Zhang, Zhongjin, Prokof'ev, Nikolay, Kuklov, Anatoly, Klimin, Serghei, Houtput, Matthew, Svistunov, Boris, Tempere, Jacques, Nagaosa, Naoto, Franchini, Cesare, Mishchenko, Andrey S.
Publikováno v:
Phys. Rev. B 107, L121109 (2023)
We present the first numerically exact study of a polaron with quadratic coupling to the oscillator displacement, using two alternative methodological developments. Our results cover both anti-adiabatic and adiabatic regimes and the entire range of e
Externí odkaz:
http://arxiv.org/abs/2212.01475
Autor:
Hahn, Thomas, Verbytskyi, Andrii
The installation and maintenance of scientific software for research in experimental, phenomenological, and theoretical High Energy Physics (HEP) requires a considerable amount of time and expertise. While many tools are available to make the task of
Externí odkaz:
http://arxiv.org/abs/2210.17261