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pro vyhledávání: '"Levy, Ryan"'
The two-dimensional electron gas (2DEG) is a fundamental model, which is drawing increasing interest because of recent advances in experimental and theoretical studies of 2D materials. Current understanding of the ground state of the 2DEG relies on q
Externí odkaz:
http://arxiv.org/abs/2405.19397
Publikováno v:
Phys. Rev. Research 6, 013237 (2024)
Variational wave function ansatze are an invaluable tool to study the properties of strongly correlated systems. We propose such a wave function, based on the theory of auxiliary fields and combining aspects of auxiliary-field quantum Monte Carlo and
Externí odkaz:
http://arxiv.org/abs/2308.08594
Autor:
Levy, Ryan, Izquierdo, Zoe Gonzalez, Wang, Zhihui, Marshall, Jeffrey, Barreto, Joseph, Fry-Bouriaux, Louis, O'Connor, Daniel T., Warburton, Paul A., Wiebe, Nathan, Rieffel, Eleanor, Wudarski, Filip A.
The Fermi-Hubbard model (FHM) on a two dimensional square lattice has long been an important testbed and target for simulating fermionic Hamiltonians on quantum hardware. We present an alternative for quantum simulation of FHMs based on an adiabatic
Externí odkaz:
http://arxiv.org/abs/2207.14374
Publikováno v:
Phys. Rev. Research 6, 013029 (2024)
Quantum process tomography is a powerful tool for understanding quantum channels and characterizing properties of quantum devices. Inspired by recent advances using classical shadows in quantum state tomography [H.-Y. Huang, R. Kueng, and J. Preskill
Externí odkaz:
http://arxiv.org/abs/2110.02965
Autor:
Levy, Ryan, Clark, Bryan K.
Entanglement is a key quantum phenomena and understanding transitions between phases of matter with different entanglement properties are an interesting probe of quantum mechanics. We numerically study a model of a 2D tensor network proposed to have
Externí odkaz:
http://arxiv.org/abs/2108.02225
Publikováno v:
SC20: International Conference for High Performance Computing, Networking, Storage and Analysis (SC), (2020) 319-332
The Density Matrix Renormalization Group (DMRG) algorithm is a powerful tool for solving eigenvalue problems to model quantum systems. DMRG relies on tensor contractions and dense linear algebra to compute properties of condensed matter physics syste
Externí odkaz:
http://arxiv.org/abs/2007.05540
Autor:
May-Mann, Julian, Levy, Ryan, Soto-Garrido, Rodrigo, Cho, Gil Young, Clark, Bryan K., Fradkin, Eduardo
Publikováno v:
Phys. Rev. B 101, 165133 (2020)
The Kondo-Heinsberg chain is an interesting model of a strongly correlated system which has a broad superconducting state with pair-density wave (PDW) order. Some of us have recently proposed that this PDW state is a symmetry-protected topological (S
Externí odkaz:
http://arxiv.org/abs/2002.01483
Akademický článek
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Autor:
Ekeke, Chigozirim N., Kuiper, Gino M., Luketich, James D., Ruppert, Kristine M., Copelli, Susan J., Baker, Nicholas, Levy, Ryan M., Awais, Omar, Christie, Neil A., Dhupar, Rajeev, Pennathur, Arjun, Sarkaria, Inderpal S.
Publikováno v:
In The Journal of Thoracic and Cardiovascular Surgery August 2023 166(2):374-382
Autor:
Levy, Ryan, Clark, Bryan K.
Publikováno v:
Phys. Rev. Lett. 126, 216401 (2021)
Quantum Monte Carlo simulations of quantum many body systems are plagued by the Fermion sign problem. The computational complexity of simulating Fermions scales exponentially in the projection time $\beta$ and system size. The sign problem is basis d
Externí odkaz:
http://arxiv.org/abs/1907.02076