Zobrazeno 1 - 10
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pro vyhledávání: '"A Pascu"'
We investigate the critical behavior of the Kondo compensation in the presence of a power-law pseudogap in the density of states, $\varrho(\omega)\sim |\omega|^\epsilon$. For $\epsilon<1$, this model exhibits a quantum phase transition from a partial
Externí odkaz:
http://arxiv.org/abs/2410.15422
Autor:
Valli, Angelo, Moca, Cătălin Paşcu, Werner, Miklós Antal, Kormos, Márton, Krajnik, Žiga, Prosen, Tomaž, Zaránd, Gergely
We propose a numerical method to efficiently compute quantum generating functions (QGF) for a wide class of observables in one-dimensional quantum systems at high temperature. We obtain high-accuracy estimates for the cumulants and reconstruct full c
Externí odkaz:
http://arxiv.org/abs/2409.14442
In this paper, we demonstrate that attacks in the latest ASVspoof5 dataset -- a de facto standard in the field of voice authenticity and deepfake detection -- can be identified with surprising accuracy using a small subset of very simplistic features
Externí odkaz:
http://arxiv.org/abs/2408.15775
Autor:
Russell, R., Heery, J., Henderson, J., Wadsworth, R., Kaneko, K., Shimizu, N., Mizusaki, T., Sun, Y., Andreoiu, C., Annen, D. W., Avaa, A. A., Ball, G. C., Bildstein, V., Buck, S., Cousins, C., Garnsworthy, A. B., Gillespie, S. A., Greaves, B., Grimes, A., Hackman, G., Hughes, R. O., Jenkins, D. G., Kowalewski, T. M., Martin, M. S., Müller-Gatermann, C., Murias, J. R., Murillo-Morales, S., Pascu, S., Rhodes, D. M., Smallcombe, J., Spagnoletti, P., Svensson, C. E., Wallis, B., Williams, J., Wu, C. Y., Yates, D.
The region of $N\approx Z\approx 40$ has long been associated with strongly deformed nuclear configurations. The presence of this strong deformation was recently confirmed through lifetime measurements in $N\approx Z$ Sr and Zr nuclei. Theoretically,
Externí odkaz:
http://arxiv.org/abs/2408.08410
We investigate a specific limit of the one-dimensional non-Hermitian Hubbard Hamiltonian with complex interactions. In this framework, fermions with different spin quantum numbers are mapped onto two distinct spin species, resulting in two $XY$ spin
Externí odkaz:
http://arxiv.org/abs/2408.08110
Autor:
Kürtössy, Olivér, Bodócs, Mihály, Moca, Cătălin Paşcu, Scherübl, Zoltán, Nikodem, Ella, Kanne, Thomas, Nygård, Jesper, Zaránd, Gergely, Makk, Péter, Csonka, Szabolcs
Topological superconductors (SCs) hold great promise for fault-tolerant quantum hardware, however, their experimental realization is very challenging. Recently, superconducting artificial molecules (Andreev molecules) have opened new avenues to engin
Externí odkaz:
http://arxiv.org/abs/2407.00825
Autor:
Dudouet, J., Colombi, G., Tello, D. Reygadas, Michelagnoli, C., Dao, D. D., Nowacki, F., Abushawish, M., Clément, E., Costache, C., Duchêne, G., Kandzia, F., Lemasson, A., Marginean, N., Marginean, R., Mihai, C., Pascu, S., Rejmund, M., Rezynkina, K., Stezowski, O., Turturica, A., Ujeniuc, S., Astier, A., de Angelis, G., de France, G., Delafosse, C., Deloncle, I., Gadea, A., Gottardo, A., Jones, P., Konstantinopoulos, T., Kuti, I., Blanc, F. Le, Lenzi, S. M., Lozeva, R., Million, B., Pérez-Vidal, R. M., Petrache, C. M., Ralet, D., Redon, N., Schmitt, C., Sohler, D., Verney, D.
The first systematic experimental study of the neutron-rich Br isotopes with two complementary state-of-the-art techniques is presented. These isotopes have been populated in the fission process at two different facilities, GANIL and ILL. New spectro
Externí odkaz:
http://arxiv.org/abs/2405.15601
Autor:
Penc, Patrik, Moca, Cătălin Paşcu, Legeza, Örs, Prosen, Tomaž, Zaránd, Gergely, Werner, Miklós Antal
Information propagation in the one-dimensional infinite temperature Hubbard model with a dissipative particle sink at the end of a semi-infinite chain is studied. In the strongly interacting limit, the two-site mutual information and the operator ent
Externí odkaz:
http://arxiv.org/abs/2402.19390
Autor:
Dóra, Balázs, Moca, Cătălin Paşcu
Publikováno v:
Phys. Rev. B 110, L121116 (2024)
We focus on the biorthogonal work statistics of the interacting many-body Hatano-Nelson model after switching on the imaginary vector potential. We introduce a generalized Loschmidt echo $G(t)$ utilizing the biorthogonal metric operator. It is well s
Externí odkaz:
http://arxiv.org/abs/2310.19310
Towards generalisable and calibrated synthetic speech detection with self-supervised representations
Generalisation -- the ability of a model to perform well on unseen data -- is crucial for building reliable deepfake detectors. However, recent studies have shown that the current audio deepfake models fall short of this desideratum. In this work we
Externí odkaz:
http://arxiv.org/abs/2309.05384