Semantic Scholar Open Access 2023 44 sitasi

Notes on time entanglement and pseudo-entropy

K. Narayan H. Saini

Lihat Sumber DOI

Abstrak

Following arXiv:2210.12963 [hep-th], we investigate aspects of the time evolution operator regarded as a density operator and associated entanglement-like structures in various quantum systems. These involve timelike separations and generically lead to complex-valued entropy, although there are interesting real subfamilies. There are many parallels and close relations with reduced transition matrices and pseudo-entropy, which we discuss and clarify. For instance, a related quantity involves the time evolution operator along with a projection onto some initial state, which amounts to analysing pseudo-entropy for the initial state and its time-evolved final state.

Topik & Kata Kunci

Physics

Penulis (2)

K. Narayan

H. Saini

Format Sitasi

APA MLA BibTeX

Narayan, K., Saini, H. (2023). Notes on time entanglement and pseudo-entropy. https://doi.org/10.1140/epjc/s10052-024-12855-x

Akses Cepat

Lihat di Sumber doi.org/10.1140/epjc/s10052-024-12855-x

Informasi Jurnal

Tahun Terbit: 2023
Bahasa: en
Total Sitasi: 44×
Sumber Database: Semantic Scholar
DOI: 10.1140/epjc/s10052-024-12855-x
Akses: Open Access ✓