Zobrazeno 1 - 10
of 370
pro vyhledávání: '"Roy, Ananda"'
Autor:
Rogerson, David, Roy, Ananda
Efficient quantum circuit optimization schemes are central to quantum simulation of strongly interacting quantum many body systems. Here, we present an optimization algorithm which combines machine learning techniques and tensor network methods. The
Externí odkaz:
http://arxiv.org/abs/2408.12583
Topological defect lines (TDLs) in two-dimensional conformal field theories (CFTs) are standard examples of generalized symmetries in quantum field theory. Integrable lattice incarnations of these TDLs, such as those provided by spin/anyonic chains,
Externí odkaz:
http://arxiv.org/abs/2408.08241
Quantum computers can efficiently solve problems which are widely believed to lie beyond the reach of classical computers. In the near-term, hybrid quantum-classical algorithms, which efficiently embed quantum hardware in classical frameworks, are cr
Externí odkaz:
http://arxiv.org/abs/2407.21278
Autor:
Roy, Ananda, Saleur, Hubert
Topological interfaces of two-dimensional conformal field theories contain information about symmetries of the theory and exhibit striking spectral and entanglement characteristics. While lattice realizations of these interfaces have been proposed fo
Externí odkaz:
http://arxiv.org/abs/2312.05566
Topological/perfectly-transmissive defects play a fundamental role in the analysis of the symmetries of two dimensional conformal field theories (CFTs). In the present work, spin chain regularizations for these defects are proposed and analyzed in th
Externí odkaz:
http://arxiv.org/abs/2310.19703
Publikováno v:
Phys. Rev. Research 6, 043083 (2024)
Efficient preparation of arbitrary entangled quantum states is crucial for quantum computation. This is particularly important for noisy intermediate scale quantum simulators relying on variational hybrid quantum-classical algorithms. To that end, we
Externí odkaz:
http://arxiv.org/abs/2310.10538
Publikováno v:
Phys. Rev. B 110, 054432 (2024)
The presence of competing interactions due to geometry leads to frustration in quantum spin models. As a consequence, the ground state of such systems often displays a large degeneracy that can be lifted due to thermal or quantum effects. One such ex
Externí odkaz:
http://arxiv.org/abs/2310.06698
Autor:
Roy, Ananda
Publikováno v:
Phys. Rev. B 108, 235414 (2023)
Multicritical Ising models and their perturbations are paradigmatic models of statistical mechanics. In two space-time dimensions, these models provide a fertile testbed for investigation of numerous non-perturbative problems in strongly-interacting
Externí odkaz:
http://arxiv.org/abs/2306.04346
Publikováno v:
Nat Commun 15, 5901 (2024)
Quantum simulation has the potential to be an indispensable technique for the investigation of non-perturbative phenomena in strongly-interacting quantum field theories (QFTs). In the modern quantum era, with Noisy Intermediate Scale Quantum~(NISQ) s
Externí odkaz:
http://arxiv.org/abs/2303.03311
Autor:
Roy, Ananda, Lukyanov, Sergei L.
Publikováno v:
Nature Communications 14, 7433 (2023)
Confinement of topological excitations into particle-like states - typically associated with theories of elementary particles - are known to occur in condensed matter systems, arising as domain-wall confinement in quantum spin chains. However, invest
Externí odkaz:
http://arxiv.org/abs/2302.06289