Phonon state tomography of electron correlation dynamics in optically
excited solids
- URL: http://arxiv.org/abs/2403.04209v1
- Date: Thu, 7 Mar 2024 04:26:45 GMT
- Title: Phonon state tomography of electron correlation dynamics in optically
excited solids
- Authors: M. Moroder, M. Mitrano, U. Schollw\"ock, S. Paeckel and J. Sous
- Abstract summary: We introduce phonon state tomography (PST) as a diagnostic probe of electron dynamics in solids.
PST may be used to diagnose electronic behavior in experiments that access only the phonon response, such as thermal diffuse x-ray and electron scattering.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: We introduce phonon state tomography (PST) as a diagnostic probe of electron
dynamics in solids whose phonons are optically excited by a laser pulse at an
initial time. Using a projected-purified matrix-product states (PP-MPS)
algorithm, PST decomposes the exact correlated electron-phonon wavefunction
into contributions from purely electronic states corresponding to statistically
typical configurations of the optically accessible phononic response, enabling
a 'tomographic' reconstruction of the electronic dynamics generated by the
phonons. Thus, PST may be used to diagnose electronic behavior in experiments
that access only the phonon response, such as thermal diffuse x-ray and
electron scattering. To demonstrate the usefulness of PST, we study the
dynamics of a metal whose infrared phonons are excited by an optical pulse at
initial time and use it to simulate the sample-averaged momentum-resolved
phonon occupancy as would be measured experimentally and accurately reconstruct
the electronic double occupancy and staggered magnetization. We also use PST to
analyze the influence of different pulse shapes on the light-induced
enhancement and suppression of electronic correlations.
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