Articles with "bloch oscillations" as a keyword



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Bloch oscillations at room temperature in graphene/h-BN electrostatic superlattices

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Published in 2021 at "Nanotechnology"

DOI: 10.1088/1361-6528/ac02e6

Abstract: In this manuscript, we report the fabrication and the measurements of Bloch oscillations at room temperature in electrostatic graphene/h-BN superlattices. The electrostatic superlattice consists of an array of tilted metallic electrodes deposited over graphene monolayer/h-BN… read more here.

Keywords: bloch oscillations; graphene; oscillations room; room temperature ... See more keywords

Generalized Bloch oscillations of ultracold lattice atoms subject to higher-order gradients

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Published in 2019 at "Physical Review A"

DOI: 10.1103/physreva.100.053603

Abstract: The standard Bloch oscillation normally refers to the oscillatory tunneling dynamics of quantum particles in a periodic lattice plus a linear gradient. In this work we theoretically investigate the generalized form of the Bloch oscillation… read more here.

Keywords: order gradients; oscillation; higher order; bloch oscillations ... See more keywords
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Many-Body Quantum Dynamics of Initially Trapped Systems due to a Stark Potential: Thermalization versus Bloch Oscillations.

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Published in 2020 at "Physical review letters"

DOI: 10.1103/physrevlett.124.110603

Abstract: We analyze the dynamics of an initially trapped cloud of interacting quantum particles on a lattice under a linear (Stark) potential. We reveal a dichotomy: initially trapped interacting systems possess features typical of both many-body-localized… read more here.

Keywords: many body; bloch oscillations; initially trapped; dynamics initially ... See more keywords
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Method for direct observation of Bloch oscillations in semiconductors.

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Published in 2018 at "Optics express"

DOI: 10.1364/oe.26.023844

Abstract: We propose a scheme for real-time observations of Bloch oscillations in semiconductors using time-resolved band gap emission spectroscopy. By solving the time-dependent Schrödinger equation, we find one remarkable band gap emission besides the normal high… read more here.

Keywords: bloch; band gap; bloch oscillations; time ... See more keywords
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Polarization-dependent Bloch oscillations in optical waveguides.

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Published in 2022 at "Optics letters"

DOI: 10.1364/ol.448090

Abstract: Optical systems provide a new and practical platform for studying Bloch oscillations. This study investigates the fundamental-mode propagation of polarization-dependent Bloch oscillations. By using the three-dimensional properties of femtosecond laser direct writing, we fabricate a… read more here.

Keywords: dependent bloch; polarization dependent; oscillations optical; bloch oscillations ... See more keywords