تقرير
Geometric corrections to cosmological entanglement
| العنوان: | Geometric corrections to cosmological entanglement |
|---|---|
| المؤلفون: | Belfiglio, Alessio, Luongo, Orlando, Mancini, Stefano |
| المصدر: | Phys. Rev. D, 105, 123523 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Astrophysics General Relativity and Quantum Cosmology Quantum Physics |
| مصطلحات موضوعية: | General Relativity and Quantum Cosmology, Astrophysics - Cosmology and Nongalactic Astrophysics, Quantum Physics |
| الوصف: | We investigate entanglement production by inhomogeneous perturbations over a homogeneous and isotropic cosmic background, demonstrating that the interplay between quantum and geometric effects can have relevant consequences on entanglement entropy, with respect to homogeneous scenarios. To do so, we focus on a conformally coupled scalar field and discuss how geometric production of scalar particles leads to entanglement. Perturbatively, at first order we find oscillations in entropy correction, whereas at second order the underlying geometry induces mode-mixing on entanglement production. We thus quantify entanglement solely due to geometrical contribution and compare our outcomes with previous findings. We characterize the geometric contribution through geometric (quasi)-particles, interpreted as dark matter candidates. Comment: 8 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevD.105.123523 |
| URL الوصول: | http://arxiv.org/abs/2201.12299 |
| رقم الأكسشن: | edsarx.2201.12299 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevD.105.123523 |
|---|