Flow-equation approach to quantum systems driven by an amplitude-modulated time-periodic force
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DOI: 10.1103/physreva.105.012203
Abstract: We apply the method of flow equations to describe quantum systems subject to a time-periodic drive with a time-dependent envelope. The driven Hamiltonian is expressed in terms of its constituent Fourier harmonics with amplitudes that… read more here.
Keywords: time; time periodic; harmonics; quantum systems ... See more keywords
Variable Planck mass from the gauge invariant flow equation
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DOI: 10.1103/physrevd.100.066017
Abstract: Using the gauge invariant flow equation for quantum gravity we compute how the strength of gravity depends on the length or energy scale. The fixed point value of the scale-dependent Planck mass in units of… read more here.
Keywords: invariant flow; mass; gauge invariant; flow equation ... See more keywords