Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Zucca, Alex"'
Autor:
King, Andrew D., Raymond, Jack, Lanting, Trevor, Harris, Richard, Zucca, Alex, Altomare, Fabio, Berkley, Andrew J., Boothby, Kelly, Ejtemaee, Sara, Enderud, Colin, Hoskinson, Emile, Huang, Shuiyuan, Ladizinsky, Eric, MacDonald, Allison J. R., Marsden, Gaelen, Molavi, Reza, Oh, Travis, Poulin-Lamarre, Gabriel, Reis, Mauricio, Rich, Chris, Sato, Yuki, Tsai, Nicholas, Volkmann, Mark, Whittaker, Jed D., Yao, Jason, Sandvik, Anders W., Amin, Mohammad H.
Publikováno v:
Nature, 2023
Experiments on disordered alloys suggest that spin glasses can be brought into low-energy states faster by annealing quantum fluctuations than by conventional thermal annealing. Due to the importance of spin glasses as a paradigmatic computational te
Externí odkaz:
http://arxiv.org/abs/2207.13800
Autor:
King, Andrew D., Suzuki, Sei, Raymond, Jack, Zucca, Alex, Lanting, Trevor, Altomare, Fabio, Berkley, Andrew J., Ejtemaee, Sara, Hoskinson, Emile, Huang, Shuiyuan, Ladizinsky, Eric, MacDonald, Allison, Marsden, Gaelen, Oh, Travis, Poulin-Lamarre, Gabriel, Reis, Mauricio, Rich, Chris, Sato, Yuki, Whittaker, Jed D., Yao, Jason, Harris, Richard, Lidar, Daniel A., Nishimori, Hidetoshi, Amin, Mohammad H.
Publikováno v:
Nature Physics Vol. 18, 1324-1328 (2022)
Quantum simulation has emerged as a valuable arena for demonstrating and understanding the capabilities of near-term quantum computers. Quantum annealing has been used successfully in simulating a range of open quantum systems, both at equilibrium an
Externí odkaz:
http://arxiv.org/abs/2202.05847
Solving discrete NP-hard problems is an important part of scientific discoveries and operations research as well as many commercial applications. A commonly used metric to compare meta-heuristic solvers is the time required to obtain an optimal solut
Externí odkaz:
http://arxiv.org/abs/2110.10196
Autor:
Pogosian, Levon, Raveri, Marco, Koyama, Kazuya, Martinelli, Matteo, Silvestri, Alessandra, Zhao, Gong-Bo, Li, Jian, Peirone, Simone, Zucca, Alex
There has been a significant interest in modifications of the standard $\Lambda$ Cold Dark Matter ($\Lambda$CDM) cosmological model prompted by tensions between certain datasets, most notably the Hubble tension. The late-time modifications of the $\L
Externí odkaz:
http://arxiv.org/abs/2107.12992
Publikováno v:
Phys. Rev. A 104, 012619 (2021)
Nonstoquastic Hamiltonians are hard to simulate due to the sign problem in quantum Monte Carlo simulation. It is however unclear whether nonstoquasticity can lead to advantage in quantum annealing. Here we show that YY-interaction between the qubits
Externí odkaz:
http://arxiv.org/abs/2010.00065
Publikováno v:
Phys. Rev. D 101, 043518 (2020)
The expansion history of the Universe reconstructed from a combination of recent data indicates a preference for a changing Dark Energy (DE) density. Moreover, the DE density appears to be increasing with cosmic time, with its equation of state being
Externí odkaz:
http://arxiv.org/abs/1907.07667
We present a major upgrade of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB used for phenomenological tests of general relativity against cosmological datasets. This new version is compatible with the latest CosmoMC code and includes a consi
Externí odkaz:
http://arxiv.org/abs/1901.05956
Constant-roll inflation was recently introduced by Motohashi, Starobinsky and Yokoyama as a phenomenological way to parametrize deviations from the slow-roll scenarios. In this paper, we investigate the dynamics of both the background and the perturb
Externí odkaz:
http://arxiv.org/abs/1808.01325
We reconstruct evolution of the dark energy (DE) density using a nonparametric Bayesian approach from a combination of latest observational data. We caution against parameterizing DE in terms of its equation of state as it can be singular in modified
Externí odkaz:
http://arxiv.org/abs/1807.03772
Autor:
Pogosian, Levon, Zucca, Alex
Was the primordial universe magnetized? The answer to this question would help explain the origin of micro-Gauss strength magnetic fields observed in galaxies. It is also of fundamental importance in developing a complete theory of the early universe
Externí odkaz:
http://arxiv.org/abs/1801.08936