تقرير
Experimentally probing Landauer's principle in the quantum many-body regime
| العنوان: | Experimentally probing Landauer's principle in the quantum many-body regime |
|---|---|
| المؤلفون: | Aimet, Stefan, Tajik, Mohammadamin, Tournaire, Gabrielle, Schüttelkopf, Philipp, Sabino, João, Sotiriadis, Spyros, Guarnieri, Giacomo, Schmiedmayer, Jörg, Eisert, Jens |
| سنة النشر: | 2024 |
| المجموعة: | Condensed Matter Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics, Condensed Matter - Quantum Gases, Condensed Matter - Statistical Mechanics |
| الوصف: | Landauer's principle bridges information theory and thermodynamics by linking the entropy change of a system during a process to the average energy dissipated to its environment. Although typically discussed in the context of erasing a single bit of information, Landauer's principle can be generalised to characterise irreversibility in out-of-equilibrium processes, such as those involving complex quantum many-body systems. Specifically, the relationship between the entropy change of the system and the energy dissipated to its environment can be decomposed into changes in quantum mutual information and a difference in relative entropies of the environment. Here we experimentally probe Landauer's principle in the quantum many-body regime using a quantum field simulator of ultracold Bose gases. Employing a dynamical tomographic reconstruction scheme, we track the temporal evolution of the quantum field following a global mass quench from a Klein-Gordon to a Tomonaga-Luttinger liquid model and analyse the information-theoretic contributions to Landauer's principle for various system-environment partitions of the composite system. Our results agree with theoretical predictions, interpreted using a semi-classical quasiparticle picture. Our work demonstrates the potential of ultracold atom-based quantum field simulators to experimentally investigate quantum thermodynamics. |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2407.21690 |
| رقم الأكسشن: | edsarx.2407.21690 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |