Decoherence-Driven Curvature: A Thermodynamic Origin for Spacetime Geometry
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| Natura: | Recurso digital |
| Lingua: | inglese |
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Zenodo
2025
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| _version_ | 1866902234174849024 |
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| author | Disch, Bryan |
| author_facet | Disch, Bryan |
| contents | <p>We propose that spacetime curvature emerges not only from classical stress-energy, but also from<br>the irreversible quantum decoherence of geometry. Building on earlier models that treat time and ge-<br>ometry as quantum-coherent degrees of freedom entangled with matter fields, we construct a frame-<br>work in which decoherence suppresses interference between geometrical configurations, inducing an<br>entropy functional Sdecoh[g]. Variation of this entropy defines a tensor Dμν that sources curva-<br>ture, leading to a generalized gravitational field equation recovering Einstein gravity in the classical<br>limit. Our construction is semiclassical, observer-dependent, and applies in regimes where reduced<br>density matrices diagonalize into pointer-state geometries. We test the proposal in Schwarzschild<br>and FLRW spacetimes using entropy-based ansätze, and outline possible experimental signatures<br>in matter-wave interferometry. While preliminary, these results support a view of gravity as the<br>macroscopic imprint of quantum information loss.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_15707695 |
| institution | Zenodo |
| language | eng |
| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Decoherence-Driven Curvature: A Thermodynamic Origin for Spacetime Geometry Disch, Bryan Physics Quantum Physics Decoherence Quantum Gravity <p>We propose that spacetime curvature emerges not only from classical stress-energy, but also from<br>the irreversible quantum decoherence of geometry. Building on earlier models that treat time and ge-<br>ometry as quantum-coherent degrees of freedom entangled with matter fields, we construct a frame-<br>work in which decoherence suppresses interference between geometrical configurations, inducing an<br>entropy functional Sdecoh[g]. Variation of this entropy defines a tensor Dμν that sources curva-<br>ture, leading to a generalized gravitational field equation recovering Einstein gravity in the classical<br>limit. Our construction is semiclassical, observer-dependent, and applies in regimes where reduced<br>density matrices diagonalize into pointer-state geometries. We test the proposal in Schwarzschild<br>and FLRW spacetimes using entropy-based ansätze, and outline possible experimental signatures<br>in matter-wave interferometry. While preliminary, these results support a view of gravity as the<br>macroscopic imprint of quantum information loss.</p> |
| title | Decoherence-Driven Curvature: A Thermodynamic Origin for Spacetime Geometry |
| topic | Physics Quantum Physics Decoherence Quantum Gravity |
| url | https://doi.org/10.5281/zenodo.15707695 |