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Periodic classical trajectories and quantum scars in many-spin systems
We numerically investigate the stability of exceptional periodic classical trajectories in rather
generic chaotic many-body systems and explore a possible connection between these …
generic chaotic many-body systems and explore a possible connection between these …
Quantum trails and memory effects in the phase space of chaotic quantum systems
A Pizzi - arxiv preprint arxiv:2412.04310, 2024 - arxiv.org
The eigenstates of a chaotic system can be enhanced along underlying unstable periodic
orbits in so-called quantum scars, making it more likely for a particle launched along one …
orbits in so-called quantum scars, making it more likely for a particle launched along one …
Exploring the properties of quantum scars in a toy model
S Sinha, S Sinha - arxiv preprint arxiv:2411.03234, 2024 - arxiv.org
We introduce the concept of ergodicity and explore its deviation caused by quantum scars in
an isolated quantum system, employing a pedagogical approach based on a toy model …
an isolated quantum system, employing a pedagogical approach based on a toy model …
Zero-energy Quantum Many-Body Scar under Emergent Chiral Symmetry and Pseudo Hilbert Space Fragmentation
Hilbert space fragmentation (HSF) is a mechanism for generating quantum many-body scar
(QMBS), which provides a route to weakly break ergodicity. The zero-energy QMBSs widely …
(QMBS), which provides a route to weakly break ergodicity. The zero-energy QMBSs widely …
Variational method for wavefunctions in spin- PXP model
Z Hu, B Wu - arxiv preprint arxiv:2501.09301, 2025 - arxiv.org
We investigate the approach of time-dependent variational principle (TDVP) for the one-
dimensional spin-$ J $ PXP model with detuning, which is relevant for programmable …
dimensional spin-$ J $ PXP model with detuning, which is relevant for programmable …
Quantum many-body scars in few-body dipole-dipole interactions
SE Spielman, A Handian, NP Inman, TJ Carroll… - Physical Review …, 2024 - APS
We simulate the dynamics of Rydberg atoms resonantly exchanging energy via two-, three-,
and four-body dipole-dipole interactions in a one-dimensional array. Using simplified …
and four-body dipole-dipole interactions in a one-dimensional array. Using simplified …