Zobrazeno 1 - 10
of 11 140
pro vyhledávání: '"A. Schuch"'
Estimating spectral gaps of quantum many-body Hamiltonians is a highly challenging computational task, even under assumptions of locality and translation-invariance. Yet, the quest for rigorous gap certificates is motivated by their broad applicabili
Externí odkaz:
http://arxiv.org/abs/2411.03680
Autor:
Florido-Llinàs, Marta, Alhambra, Álvaro M., Trivedi, Rahul, Schuch, Norbert, Pérez-García, David, Cirac, J. Ignacio
Tensor network methods have proved to be highly effective in addressing a wide variety of physical scenarios, including those lacking an intrinsic one-dimensional geometry. In such contexts, it is possible for the problem to exhibit a weak form of pe
Externí odkaz:
http://arxiv.org/abs/2410.19541
Tensor network contraction is a powerful computational tool in quantum many-body physics, quantum information and quantum chemistry. The complexity of contracting a tensor network is thought to mainly depend on its entanglement properties, as reflect
Externí odkaz:
http://arxiv.org/abs/2410.05414
Autor:
Munakata, K., Hayashi, Y., Kozai, M., Kato, C., Miyashita, N., Kataoka, R., Kadokura, A., Miyake, S., Iwai, K., Echer, E., Lago, A. Dal, Rockenbach, M., Schuch, N. J., Bageston, J. V., Braga, C. R., Jassar, H. K. Al, Sharma, M. M., Duldig, M. L., Humble, J. E., Sabbah, I., Evenson, P., Kuwabara, T., Kóta, J.
This paper presents the global analysis of two extended decreases of the galactic cosmic ray intensity observed by world-wide networks of ground-based detectors in 2012. This analysis is capable of separately deriving the cosmic ray density (or omnid
Externí odkaz:
http://arxiv.org/abs/2408.14696
Autor:
Buhrman, Harry, Gharibian, Sevag, Landau, Zeph, Gall, François Le, Schuch, Norbert, Tamaki, Suguru
Estimating ground state energies of many-body Hamiltonians is a central task in many areas of quantum physics. In this work, we give quantum algorithms which, given any $k$-body Hamiltonian $H$, compute an estimate for the ground state energy and pre
Externí odkaz:
http://arxiv.org/abs/2407.03073
Autor:
Rubio, Jose Garre, Schuch, Norbert
We study the statistics of domain wall excitations in quantum spin chains. We focus on systems with finite symmetry groups represented by matrix product unitaries (MPUs), i.e. finite depth quantum circuits. Such symmetries can be anomalous, in which
Externí odkaz:
http://arxiv.org/abs/2405.00439
We investigate how the computational difficulty of contracting tensor networks depends on the sign structure of the tensor entries. Using results from computational complexity, we observe that the approximate contraction of tensor networks with only
Externí odkaz:
http://arxiv.org/abs/2404.19023
Publikováno v:
PRX Quantum 5, 040311 (2024)
The advancement of quantum simulators motivates the development of a theoretical framework to assist with efficient state preparation in quantum many-body systems. Generally, preparing a target entangled state via unitary evolution with time-dependen
Externí odkaz:
http://arxiv.org/abs/2403.12325
Gradient based optimization methods are the established state-of-the-art paradigm to study strongly entangled quantum systems in two dimensions with Projected Entangled Pair States. However, the key ingredient, the gradient itself, has proven challen
Externí odkaz:
http://arxiv.org/abs/2311.11894
Autor:
Lauren Frenzel Schuch, Daniela Campagnol, Tuany Rafaeli Schmidt, Carolina Horn Troian Michel, Tuane Nerissa Alves Garcez, Vanessa Rodrigues Velho, Vivian Petersen Wagner, Rogerio Moraes Castilho, Felipe Martins Silveira, Ronell Bologna-Molina, Marco Antonio Trevizani Martins, Chris Krebs Danilevicz, Alan Roger Santos-Silva, Pablo Agustin Vargas, Manoela Domingues Martins
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-11 (2024)
Abstract The present investigation aimed to assess the safety of photobiomodulation (PBM) on the oral carcinogenesis process induced by 4NQO, focusing on cell proliferation and apoptosis. Sixty-six Wistar rats received systemic 4NQO for 12 (n = 33) a
Externí odkaz:
https://doaj.org/article/f3a3ca77dcdb4296ad0bdceedad956ef
