Zobrazeno 1 - 10
of 661
pro vyhledávání: '"Dziarmaga, A."'
Autor:
Bortkiewicz, Michał, Pałucki, Władek, Myers, Vivek, Dziarmaga, Tadeusz, Arczewski, Tomasz, Kuciński, Łukasz, Eysenbach, Benjamin
Abstract Self-supervision has the potential to transform reinforcement learning (RL), paralleling the breakthroughs it has enabled in other areas of machine learning. While self-supervised learning in other domains aims to find patterns in a fixed da
Externí odkaz:
http://arxiv.org/abs/2408.11052
We identify persistent oscillations in a nonintegrable quantum Ising chain left behind by a rapid transition into a ferromagnetic phase. In the integrable chain with nearest-neighbor (NN) interactions, the nature, origin, and decay of post-transition
Externí odkaz:
http://arxiv.org/abs/2407.06036
Publikováno v:
Phys. Rev. B 110, 054410 (2024)
Adiabatic preparation of a critical ground state is hampered by the closing of its energy gap as the system size increases. However, this gap is directly relevant only for a uniform ramp, where a control parameter in the Hamiltonian is tuned uniforml
Externí odkaz:
http://arxiv.org/abs/2406.14989
Autor:
King, Andrew D., Nocera, Alberto, Rams, Marek M., Dziarmaga, Jacek, Wiersema, Roeland, Bernoudy, William, Raymond, Jack, Kaushal, Nitin, Heinsdorf, Niclas, Harris, Richard, Boothby, Kelly, Altomare, Fabio, Berkley, Andrew J., Boschnak, Martin, Chern, Kevin, Christiani, Holly, Cibere, Samantha, Connor, Jake, Dehn, Martin H., Deshpande, Rahul, Ejtemaee, Sara, Farré, Pau, Hamer, Kelsey, Hoskinson, Emile, Huang, Shuiyuan, Johnson, Mark W., Kortas, Samuel, Ladizinsky, Eric, Lai, Tony, Lanting, Trevor, Li, Ryan, MacDonald, Allison J. R., Marsden, Gaelen, McGeoch, Catherine C., Molavi, Reza, Neufeld, Richard, Norouzpour, Mana, Oh, Travis, Pasvolsky, Joel, Poitras, Patrick, Poulin-Lamarre, Gabriel, Prescott, Thomas, Reis, Mauricio, Rich, Chris, Samani, Mohammad, Sheldan, Benjamin, Smirnov, Anatoly, Sterpka, Edward, Clavera, Berta Trullas, Tsai, Nicholas, Volkmann, Mark, Whiticar, Alexander, Whittaker, Jed D., Wilkinson, Warren, Yao, Jason, Yi, T. J., Sandvik, Anders W., Alvarez, Gonzalo, Melko, Roger G., Carrasquilla, Juan, Franz, Marcel, Amin, Mohammad H.
Quantum computers hold the promise of solving certain problems that lie beyond the reach of conventional computers. Establishing this capability, especially for impactful and meaningful problems, remains a central challenge. One such problem is the s
Externí odkaz:
http://arxiv.org/abs/2403.00910
Autor:
Zhang, Yintai, Dziarmaga, Jacek
Publikováno v:
Phys. Rev. B 109, 235124 (2024)
A bang-bang (BB) algorithm prepares the ground state of a two-dimensional (2D) quantum many-body Hamiltonian $H=H_1+H_2$ by evolving an initial product state alternating between $H_1$ and $H_2$. We use the neighborhood tensor update to simulate the B
Externí odkaz:
http://arxiv.org/abs/2401.09158
Publikováno v:
Phys. Rev. B 109, 045136 (January 2024)
The Minimally Entangled Typical Thermal States (METTS) are an ensemble of pure states, equivalent to the Gibbs thermal state, that can be efficiently represented by tensor networks. In this article, we use the Projected Entangled Pair States (PEPS) a
Externí odkaz:
http://arxiv.org/abs/2310.08533
Publikováno v:
Phys. Rev. B 109, 064501 (2024)
A quantum phase transition from the miscible to the immiscible phase of a quasi-one-dimensional binary Bose-Einstein condensate is driven by ramping down the coupling amplitude of its two hyperfine states. It results in a random pattern of spatial do
Externí odkaz:
http://arxiv.org/abs/2310.07679
Autor:
Dziarmaga, Jacek, Mazur, Jakub M.
Publikováno v:
Phys. Rev. B 107, 144510 (2023)
Quantum simulations of the Bose-Hubbard model (BHM) at commensurate filling can follow spreading of correlations after a sudden quench for times long enough to estimate their propagation velocities. In this work we perform tensor network simulation o
Externí odkaz:
http://arxiv.org/abs/2302.13347
Publikováno v:
Phys. Rev. B 106, 195105 (2022)
The Hubbard model is a longstanding problem in the theory of strongly correlated electrons and a very active one in the experiments with ultracold fermionic atoms. Motivated by current and prospective quantum simulations, we apply a two-dimensional t
Externí odkaz:
http://arxiv.org/abs/2209.00985
Autor:
Dziarmaga, Jacek
Publikováno v:
Phys. Rev. B 106, 014304 (2022)
Time evolution of an infinite 2D many body quantum lattice system can be described by the Suzuki-Trotter decomposition applied to the infinite projected entangled pair state (iPEPS). Each Trotter gate increases the bond dimension of the tensor networ
Externí odkaz:
http://arxiv.org/abs/2205.11067