Channel induced dynamics of quantum information in mixed state free QFTs

التفاصيل البيبلوغرافية
العنوان: Channel induced dynamics of quantum information in mixed state free QFTs
المؤلفون: Baczyk, Michal
سنة النشر: 2022
المجموعة: High Energy Physics - Theory
Quantum Physics
مصطلحات موضوعية: High Energy Physics - Theory, Quantum Physics
الوصف: We propose a framework for Quantum Field Theory (QFT) studies that allows us to represent field excitations as quantum channels. We demonstrate inner-workings of the proposed scheme for two universal states: the regularized vacuum state of a one dimensional QFT system and the lattice-regulated Thermofield Double State of two identical free QFTs. We investigate actions of unitary and non-unitary Bosonic Gaussian channels (including Petz Recovery maps). To evaluate and quantify the character of the channel static action and channel induced dynamics we calculate quantum entropies and fidelities.
Comment: 13 pages, 6 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevD.108.016008
URL الوصول: http://arxiv.org/abs/2201.02723
رقم الأكسشن: edsarx.2201.02723
قاعدة البيانات: arXiv
الوصف
DOI:10.1103/PhysRevD.108.016008