Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Lawler, P. J."'
The entanglement-induced barren plateau is an exponential vanishing of the parameter gradients with system size that limits the practical application of variational quantum algorithms(VQA). A landscape transition from barren plateau to no-barren plat
Externí odkaz:
http://arxiv.org/abs/2312.09135
$\alpha$-RuCl3 is a magnetic insulator exhibiting quantum spin liquid phases possibly found in the Kitaev honeycomb model. Much of the effort towards determining Hamiltonian parameters has focused on low magnetic field ordered phases. We study this p
Externí odkaz:
http://arxiv.org/abs/2301.01301
Quantum computers and simulators promise to enable the study of strongly correlated quantum systems. Yet, surprisingly, it is hard for them to compute ground states. They can, however, efficiently compute the dynamics of closed quantum systems. We pr
Externí odkaz:
http://arxiv.org/abs/2211.01259
The Unruh-DeWitt particle detector model has found success in demonstrating quantum information channels with non-zero channel capacity between qubits and quantum fields. These detector models provide the necessary framework for experimentally realiz
Externí odkaz:
http://arxiv.org/abs/2210.12552
Supersymmetry has been studied at a linear level between normal modes of metamaterials described by rigidity matrices and non-interacting quantum Hamiltonians. The connection between classical and quantum was made through the matrices involved in eac
Externí odkaz:
http://arxiv.org/abs/2207.10045
Autor:
Lo, Po-Wei, Lawler, Michael J.
Topological frustration (or topological mechanics) is the existence of classical zero modes that are robust to many but not all distortions of the Hamiltonian. It arises naturally from locality in systems whose interactions form a set of constraints
Externí odkaz:
http://arxiv.org/abs/2207.09549
Publikováno v:
Phys. Rev. Research 6, 043273 - Published 13 December, 2024
In quantum mechanics, supersymmetry (SUSY) posits an equivalence between two elementary degrees of freedom, bosons, and fermions defined by local rules. Here we apply it to find connections between bosonic and fermionic lattice models in the realm of
Externí odkaz:
http://arxiv.org/abs/2207.09475
Autor:
Su, Kaixiang, Lawler, Michael J.
Many-body phenomena far from equilibrium present challenges beyond reach by classical computational resources. Digital quantum computers provide a possible way forward but noise limits their use in the near-term. We propose a scheme to simulate and c
Externí odkaz:
http://arxiv.org/abs/2112.03925
Autor:
Gyawali, Gaurav, Lawler, Michael J.
Approximating the ground states of strongly interacting electron systems in quantum chemistry and condensed matter physics is expected to be one of the earliest applications of quantum computers. In this paper, we prepare highly accurate ground state
Externí odkaz:
http://arxiv.org/abs/2109.12126
Autor:
Lo, Po-Wei, Roychowdhury, Krishanu, Chen, Bryan Gin-ge, Santangelo, Christian D., Jian, Chao-Ming, Lawler, Michael J.
Publikováno v:
Phys. Rev. Lett. 127, 076802 (2021)
Many advancements have been made in the field of topological mechanics. The majority of the works, however, concerns the topological invariant in a linear theory. We, in this work, present a generic prescription of defining topological indices which
Externí odkaz:
http://arxiv.org/abs/2104.12778