first-in-human-quantum-entanglement-imaging

name	first-in-human-quantum-entanglement-imaging
description	First-in-human quantum entanglement imaging methodology using J-PET plastic scintillator scanner. Measures polarization correlations of annihilation photons from positron-electron annihilation in vivo for clinical diagnostics. Use when: quantum PET imaging, entanglement-based medical imaging, J-PET scanner design, polarization-correlated tomography, quantum entanglement degree as biomarker, 68Ga radiopharmaceutical quantum imaging.
metadata	{"arxiv_id":"2606.29421","published":"2026-06-28","authors":"Pawel Moskal et al.","tags":["quantum-imaging","PET","entanglement","medical-diagnostics","J-PET","clinical"]}

First-in-Human Quantum Entanglement Imaging

Core Concept

First in vivo imaging of quantum entanglement degree from positron-electron annihilation in human subjects using the J-PET (Jagiellonian Positron Emission Tomography) scanner constructed from plastic scintillators. Exploits the quantum-entangled polarization of annihilation photons — a phenomenon previously unutilized in medical diagnostics.

Key Technical Insights

• Plastic scintillator advantage: In plastics, annihilation photons interact primarily via Compton effect, providing simultaneous measurement of photon interaction position, time, AND polarization plane — enabling entanglement degree imaging alongside standard PET imaging.

• Dual-imaging capability: The J-PET scanner simultaneously determines (1) standard radiopharmaceutical uptake image and (2) quantum entanglement degree image from the relative angle between polarization planes of annihilation photon pairs.

• Entanglement degree values: For 68Ga-DOTA-TATE labeled patient, liver and spleen entanglement degrees are smaller than maximally entangled two-photon states but larger than separable photons — demonstrating measurable quantum correlations at clinically relevant activities.

• Clinical diagnostic potential: Opens new dimension for clinical diagnostics — entanglement degree as a potential biomarker reflecting tissue microstructure and molecular environment effects on photon polarization correlations.

Methodology

1. Radiopharmaceutical injection: Patient injected with 68Ga-DOTA-TATE (somatostatin receptor targeting).
2. J-PET detection: Plastic scintillator rings detect annihilation photons via Compton scattering.
3. Polarization plane extraction: From Compton scattering kinematics, extract polarization plane orientation for each photon.
4. Entanglement degree calculation: Compute relative angle distribution between polarization planes of coincidence photon pairs.
5. Image reconstruction: Generate entanglement degree image parallel to standard PET uptake image.
6. Tissue analysis: Compare entanglement degrees across organ regions (liver, spleen, tumor).

Applications

• Quantum-enhanced PET imaging with additional information channel
• Tissue characterization via entanglement degree as biomarker
• Low-cost quantum imaging (plastic scintillators vs crystal detectors)
• Clinical validation of quantum correlations in human subjects

Pitfalls

• Compton scattering statistics: Polarization measurement via Compton scattering has lower efficiency than dedicated polarimeters — requires higher activity or longer acquisition times.
• Entanglement degradation: Scattering in tissue before detection reduces observable entanglement degree — must model transport effects for quantitative interpretation.
• Not a replacement for standard PET: Currently complementary — adds entanglement information alongside, not instead of, standard uptake imaging.

Activation Keywords

• quantum entanglement imaging, J-PET, plastic scintillator PET, polarization-correlated tomography, entanglement degree biomarker, 68Ga quantum imaging, in vivo quantum measurement, clinical quantum diagnostics