Zobrazeno 1 - 10
of 309
pro vyhledávání: '"Krzakala, F."'
Publikováno v:
Proceedings of IEEE Information Theory Workshop (ITW), pp. 323-328. IEEE, 2023
Noiseless compressive sensing is a protocol that enables undersampling and later recovery of a signal without loss of information. This compression is possible because the signal is usually sufficiently sparse in a given basis. Currently, the algorit
Externí odkaz:
http://arxiv.org/abs/2304.12127
Autor:
Abrol, V., Absil, O., Absil, P. -A., Anthoine, S., Antoine, P., Arildsen, T., Bertin, N., Bleichrodt, F., Bobin, J., Bol, A., Bonnefoy, A., Caltagirone, F., Cambareri, V., Chenot, C., Crnojević, V., Daňková, M., Degraux, K., Eisert, J., Fadili, J. M., Gabrié, M., Gac, N., Giacobello, D., Gonzalez, A., Gonzalez, C. A. Gomez, González, A., Gousenbourger, P. -Y., Christensen, M. Græsbøll, Gribonval, R., Guérit, S., Huang, S., Irofti, P., Jacques, L., Kamilov, U. S., Kiticć, S., Kliesch, M., Krzakala, F., Lee, J. A., Liao, W., Jensen, T. Lindstrøm, Manoel, A., Mansour, H., Mohammad-Djafari, A., Moshtaghpour, A., Ngolè, F., Pairet, B., Panić, M., Peyré, G., Pižurica, A., Rajmic, P., Roblin, M., Roth, I., Sao, A. K., Sharma, P., Starck, J. -L., Tramel, E. W., van Waterschoot, T., Vukobratovic, D., Wang, L., Wirth, B., Wunder, G., Zhang, H.
The third edition of the "international - Traveling Workshop on Interactions between Sparse models and Technology" (iTWIST) took place in Aalborg, the 4th largest city in Denmark situated beautifully in the northern part of the country, from the 24th
Externí odkaz:
http://arxiv.org/abs/1609.04167
Publikováno v:
EPL, 89 (2010) 40004
We study first-order quantum phase transitions in models where the mean-field traitment is exact, and the exponentially fast closure of the energy gap with the system size at the transition. We consider exactly solvable ferromagnetic models, and show
Externí odkaz:
http://arxiv.org/abs/0912.4865
Publikováno v:
Phys. Rev. Lett. 104, 207206 (2010)
We present a study of the phase diagram of a random optimization problem in presence of quantum fluctuations. Our main result is the characterization of the nature of the phase transition, which we find to be a first-order quantum phase transition. W
Externí odkaz:
http://arxiv.org/abs/0911.3438
Publikováno v:
Phys. Rev. E 87, 042205 (2013)
The granular jamming transition is experimentally investigated in a two-dimensional system of frictional, bi-dispersed disks subject to quasi-static, uniaxial compression at zero granular temperature. Currently accepted results show the jamming trans
Externí odkaz:
http://arxiv.org/abs/0910.3008
Publikováno v:
Proc. Nat. Acad. Sci. 107:7663,2010
Methods to extract information from the tracking of mobile objects/particles have broad interest in biological and physical sciences. Techniques based on simple criteria of proximity in time-consecutive snapshots are useful to identify the trajectori
Externí odkaz:
http://arxiv.org/abs/0909.4256
Publikováno v:
Phys. Rev. Lett. 103, 025701 (2009)
Recent ideas based on the properties of assemblies of frictionless particles in mechanical equilibrium provide a perspective of amorphous systems different from that offered by the traditional approach originating in liquid theory. The relation, if a
Externí odkaz:
http://arxiv.org/abs/0806.3665
Autor:
Krzakala, F., Parisi, G.
Publikováno v:
Europhys. Lett., 66 (5), pp. 729-735 (2004)
We address the question of geometrical as well as energetic properties of local excitations in mean field Ising spin glasses. We study analytically the Random Energy Model and numerically a dilute mean field model, first on tree-like graphs, equivale
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304590
Publikováno v:
Phys. Rev. B 68, 224404 (2003).
We study the probability distribution P(E) of the ground state energy E in various Ising spin glasses. In most models, P(E) seems to become Gaussian with a variance growing as the system's volume V. Exceptions include the Sherrington-Kirkpatrick mode
Externí odkaz:
http://arxiv.org/abs/cond-mat/0212070
Autor:
Krzakala, F., Martin, O. C.
Publikováno v:
Phys. Rev. Lett. 89, 267202 (2002)
Using ground state computations, we study the transition from a spin glass to a ferromagnet in 3-d spin glasses when changing the mean value of the spin-spin interaction. We find good evidence for replica symmetry breaking up till the critical value
Externí odkaz:
http://arxiv.org/abs/cond-mat/0208566