Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Balachandran, Vinitha"'
Autor:
Casagrande, Heitor P., Xing, Bo, Dalmonte, Marcello, Rodriguez, Alex, Balachandran, Vinitha, Poletti, Dario
Publikováno v:
Phys. Rev. E 108, 044128 (2023)
We study the Hamiltonian dynamics of a many-body quantum system subjected to periodic projective measurements which leads to probabilistic cellular automata dynamics. Given a sequence of measured values, we characterize their dynamics by performing a
Externí odkaz:
http://arxiv.org/abs/2305.03334
Autor:
Balachandran, Vinitha, Poletti, Dario
OTOC has been used to characterize the information scrambling in quantum systems. Recent studies showed that local conserved quantities play a crucial role in governing the relaxation dynamics of OTOC in non-integrable systems. In particular, slow sc
Externí odkaz:
http://arxiv.org/abs/2211.09965
Publikováno v:
Phys. Rev. B 107, 235421 (2023)
Out-of-time ordered correlators (OTOCs) help characterize the scrambling of quantum information and are usually studied in the context of nonintegrable systems. In this work, we compare the relaxation dynamics of OTOCs in interacting integrable and n
Externí odkaz:
http://arxiv.org/abs/2211.07073
Neural network quantum states are a promising tool to analyze complex quantum systems given their representative power. It can however be difficult to optimize efficiently and effectively the parameters of this type of ansatz. Here we propose a local
Externí odkaz:
http://arxiv.org/abs/2207.10882
We study the transport and spectral property of a segmented diode formed by an XX $+$ XXZ spin chain. This system has been shown to become an ideal rectifier for spin current for large enough anisotropy. Here we show numerical evidence that the syste
Externí odkaz:
http://arxiv.org/abs/2110.15564
Publikováno v:
Phys. Rev. B 105, 115429 (2022)
We consider a bosonic two-legged ladder whose two-band energy spectrum can be tuned in the presence of a uniform gauge field, to four distinct scenarios: degenerate or non-degenerate ground states with gapped or gapless energy bands. We couple the la
Externí odkaz:
http://arxiv.org/abs/2108.10894
Publikováno v:
Phys. Rev. B 104, 104306 (2021)
The relaxation of out-of-time-ordered correlators (OTOCs) has been studied as a mean to characterize the scrambling properties of a quantum system. We show that the presence of local conserved quantities typically results in, at the fastest, an algeb
Externí odkaz:
http://arxiv.org/abs/2106.00234
Publikováno v:
Phys. Rev. E 103, 052143 (2021)
In Phys. Rev. Lett. 120, 200603 (2018), a segmented XXZ spin chain with zero anisotropy in one half and a large anisotropy on the other half gave rise to a spin current rectification which is perfect in the thermodynamic limit. Here we extend the pre
Externí odkaz:
http://arxiv.org/abs/2103.06750
Publikováno v:
Phys. Rev. B 102, 245433 (2020)
Quantum systems can undergo phase transitions and show distinct features in different phases. The corresponding transport properties can also vary significantly due to the underlying quantum phase. We investigate the transport behaviour of a two-legg
Externí odkaz:
http://arxiv.org/abs/2010.03584
Publikováno v:
Phys. Rev. E 102, 012155 (2020)
We investigate the transport properties of an anharmonic oscillator, modeled by a single-site Bose-Hubbard model, coupled to two different thermal baths using the numerically exact thermofield based chain-mapping matrix product states (TCMPS) approac
Externí odkaz:
http://arxiv.org/abs/2004.05017