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Abstract We compute the quantum metric tensor and its scalar curvature for the anharmonic oscillator for positive and negative quadratic potentials, where the potential displays a double well, employing exact numerical and perturbative procedures. We also introduce a formulation of the classical analog of the quantum metric tensor by using a novel approach based on Fourier series, which is shown to reproduce the relevant quantum features involved in the parameter space. It is remarkable that both the exact quantum treatment and classical formalism recognize the negative oscillator parameter at which the ground state starts to be delocalized in two wells.
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Optical atomic clock aboard an Earth-orbiting space station (OACESS): enhancing searches for physics beyond the standard model in space
Abstract We present a concept for a high-precision optical atomic clock (OAC) operating on an Earth-orbiting space station. This pathfinder science mission will compare the space-based OAC with one or more ultra-stable terrestrial OACs to search for space-time-dependent signatures of dark scalar fields that manifest as anomalies in the relative frequencies of station-based and ground-based clocks. This opens the possibility of probing models of new physics that are inaccessible to purely ground-based OAC experiments where a dark scalar field may potentially be strongly screened near Earth’s surface. This unique enhancement of sensitivity to potential dark matter candidates harnesses the potential of space-based OACs.
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- PAR ID:
- 10380932
- Publisher / Repository:
- IOP Publishing
- Date Published:
- Journal Name:
- Quantum Science and Technology
- Volume:
- 8
- Issue:
- 1
- ISSN:
- 2058-9565
- Page Range / eLocation ID:
- Article No. 014003
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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