Adith Sai Aramthottil
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View article: False signatures of non-ergodic behavior in disordered quantum many-body systems
False signatures of non-ergodic behavior in disordered quantum many-body systems Open
Ergodic isolated quantum many-body systems satisfy the eigenstate thermalization hypothesis (ETH), i.e. the expectation values of local observables in the system’s eigenstates approach the predictions of the microcanonical ensemble. Howeve…
View article: False signatures of non-ergodic behavior in disordered quantum many-body systems
False signatures of non-ergodic behavior in disordered quantum many-body systems Open
Ergodic isolated quantum many-body systems satisfy the eigenstate thermalization hypothesis (ETH), i.e., the expectation values of local observables in the system's eigenstates approach the predictions of the microcanonical ensemble. Howev…
View article: Interplay of localization and topology in disordered dimerized array of Rydberg atoms
Interplay of localization and topology in disordered dimerized array of Rydberg atoms Open
Rydberg tweezer arrays provide a platform for realizing spin-1/2 Hamiltonians with long-range tunneling that decays as a power law with distance. We numerically investigate the effects of positional disorder and dimerization on the propert…
View article: Phenomenology of Many-Body Localization in Bond-Disordered Spin Chains
Phenomenology of Many-Body Localization in Bond-Disordered Spin Chains Open
Many-body localization (MBL) hinders the thermalization of quantum many-body systems in the presence of strong disorder. In this Letter, we study the MBL regime in bond-disordered spin-1/2 XXZ spin chain, finding the multimodal distributio…
View article: Many-body localization crossover is sharper in quasiperiodic spin chains
Many-body localization crossover is sharper in quasiperiodic spin chains Open
Due to a phenomenon of many-body localization (MBL), the strong disorder may significantly slow down or even completely hinder the thermalization of quantum many-body systems. A sufficiently deep quasiperiodic potential may also inhibit th…
View article: Phenomenology of many-body localization in bond-disordered spin chains
Phenomenology of many-body localization in bond-disordered spin chains Open
Many-body localization (MBL) hinders the thermalization of quantum many-body systems in the presence of strong disorder. In this work, we study the MBL regime in bond-disordered spin-1/2 XXZ spin chain, finding the multimodal distribution …
View article: Scrambling under quench
Scrambling under quench Open
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches. We find that when the Lyapunov exponent exists, it can be identified with the quenched en…
View article: Role of interaction-induced tunneling in the dynamics of polar lattice bosons
Role of interaction-induced tunneling in the dynamics of polar lattice bosons Open
Inter-site dipolar interactions induce, even in absence of disorder, an intriguing non-ergodic dynamics for dipolar bosons in an optical lattice. We show that the inherent dipole-induced density-dependent tunneling, typically neglected, pl…
View article: The role of interaction-induced tunneling in the dynamics of polar lattice bosons
The role of interaction-induced tunneling in the dynamics of polar lattice bosons Open
Inter-site dipolar interactions induce, even in absence of disorder, an intriguing non-ergodic dynamics for dipolar bosons in an optical lattice. We show that the inherent dipole-induced density-dependent tunneling, typically neglected, pl…
View article: Report on scipost_202206_00022v1
Report on scipost_202206_00022v1 Open
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches.We find that when the Lyapunov exponent exists, it can be identified with the quenched ene…
View article: Report on scipost_202206_00022v1
Report on scipost_202206_00022v1 Open
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches.We find that when the Lyapunov exponent exists, it can be identified with the quenched ene…
View article: Report on scipost_202206_00022v1
Report on scipost_202206_00022v1 Open
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches.We find that when the Lyapunov exponent exists, it can be identified with the quenched ene…
View article: Scar States in Deconfined $\mathbb{Z}_2$ Lattice Gauge Theories
Scar States in Deconfined $\mathbb{Z}_2$ Lattice Gauge Theories Open
The weak ergodicity breaking induced by quantum many-body scars (QMBS) represents an intriguing concept that has received great attention in recent years due to its relation to unusual non-equilibrium behaviour. Here we reveal that this ph…
View article: Finite-size scaling analysis of the many-body localization transition in quasiperiodic spin chains
Finite-size scaling analysis of the many-body localization transition in quasiperiodic spin chains Open
We analyze the finite-size scaling of the average gap-ratio and the entanglement entropy across the many-body localization (MBL) transition in one dimensional Heisenberg spin-chain with quasi-periodic (QP) potential. By using the recently …
View article: Scrambling under quench
Scrambling under quench Open
We evaluate out of time ordered correlators in certain low dimensional quantum systems at zero temperature, subjected to homogenous quantum quenches. We find that when the Lyapunov exponent exists, it can be identified with the quenched en…