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2026
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| Online Access: | https://doi.org/10.5281/zenodo.19010078 |
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| _version_ | 1866901549038436352 |
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| author | Markham, Robert Tristen |
| author_facet | Markham, Robert Tristen |
| contents | <p>A companion paper [1] derived an inverse-roughness law for quantum coherence length: L_c = K_lab / R_n, where L_c is the entanglement coherence length, R_n is the refractive-index gradient roughness of the intervening medium, and K_lab is a proportionality constant. The hyperbolic form of this relationship was derived from geometric principles within the Field Intrinsic Gravity Induced Density (FIGID) framework, but the constant K_lab has not been measured. This paper presents an experimental protocol for determining K_lab in optical fiber by systematically varying the refractive-index roughness through controlled thermal perturbation and measuring the resulting entanglement fidelity as a function of fiber length. The protocol uses standard entangled photon sources, commercially available fiber, and established coincidence-counting techniques. If L_c × R_n = constant across multiple roughness settings within a single medium, the hyperbolic form is confirmed and K_lab is determined. The protocol is designed to be executable by any quantum optics laboratory with an entanglement distribution setup.</p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_19010078 |
| institution | Zenodo |
| language | |
| publishDate | 2026 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | Experimental Design for Measuring the Inverse-Roughness Constant of Quantum Coherence Markham, Robert Tristen <p>A companion paper [1] derived an inverse-roughness law for quantum coherence length: L_c = K_lab / R_n, where L_c is the entanglement coherence length, R_n is the refractive-index gradient roughness of the intervening medium, and K_lab is a proportionality constant. The hyperbolic form of this relationship was derived from geometric principles within the Field Intrinsic Gravity Induced Density (FIGID) framework, but the constant K_lab has not been measured. This paper presents an experimental protocol for determining K_lab in optical fiber by systematically varying the refractive-index roughness through controlled thermal perturbation and measuring the resulting entanglement fidelity as a function of fiber length. The protocol uses standard entangled photon sources, commercially available fiber, and established coincidence-counting techniques. If L_c × R_n = constant across multiple roughness settings within a single medium, the hyperbolic form is confirmed and K_lab is determined. The protocol is designed to be executable by any quantum optics laboratory with an entanglement distribution setup.</p> |
| title | Experimental Design for Measuring the Inverse-Roughness Constant of Quantum Coherence |
| url | https://doi.org/10.5281/zenodo.19010078 |