Quantum scars and bulk coherence in a symmetry-protected topological phase
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DOI: 10.1103/physrevb.104.014424
Abstract: Formation of quantum scars in many-body systems provides a novel mechanism for enhancing coherence of weakly entangled states. At the same time, coherence of edge modes in certain symmetry protected topological (SPT) phases can persist… read more here.
Keywords: many body; quantum scars; cluster; coherence ... See more keywords
Controllable quantum scars in semiconductor quantum dots
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DOI: 10.1103/physrevb.96.094204
Abstract: Quantum scars are enhancements of quantum probability density along classical periodic orbits. We study the recently discovered phenomenon of strong, perturbation-induced quantum scarring in the two-dimensional harmonic oscillator exposed to a homogeneous magnetic field. We… read more here.
Keywords: controllable quantum; quantum scars; scars semiconductor; geometry ... See more keywords
Quantum Scars from Zero Modes in an Abelian Lattice Gauge Theory on Ladders.
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DOI: 10.1103/physrevlett.126.220601
Abstract: We consider the spectrum of a U(1) quantum link model where gauge fields are realized as S=1/2 spins and demonstrate a new mechanism for generating quantum many-body scars (high-energy eigenstates that violate the eigenstate thermalization… read more here.
Keywords: zero modes; many body; quantum scars; lattice gauge ... See more keywords