An Ergodic Theorem for the Quantum Relative Entropy

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

An Ergodic Theorem for the Quantum Relative Entropy

We prove the ergodic version of the quantum Stein’s lemma which was conjectured by Hiai and Petz. The result provides an operational and statistical interpretation of the quantum relative entropy as a statistical measure of distinguishability, and contains as a special case the quantum version of the Shannon-McMillan theorem for ergodic states. A version of the quantum relative Asymptotic Equip...

متن کامل

An ergodic theorem for quantum counting processes

Modern research on quantum-mechanical counting processes, be it numerical simulations [Car] or experimental investigations [MYK], usually starts from the tacit assumption that for the study of statistical properties of the counting records it does not make a difference whether a large number of experiments is performed or a single very long one. This assumption amounts to ergodicity of these re...

متن کامل

A theorem about relative entropy of quantum states with an application to privacy in quantum communication

We prove the following theorem about relative entropy of quantum states. Substate theorem: Let ρ and σ be quantum states in the same Hilbert space with relative entropy S(ρ‖σ) := Tr ρ(log ρ− log σ) = c. Then for all > 0, there is a state ρ′ such that the trace distance ‖ρ′ − ρ‖tr := Tr p (ρ′ − ρ)2 ≤ , and ρ′/2O(c/ 2) ≤ σ. It states that if the relative entropy of ρ and σ is small, then there is...

متن کامل

Inequalities for Quantum Relative Entropy

Some logarithmic trace inequalities involving the notions of relative entropy are reobtained from a log-majorization result. The thermodynamic inequality is generalized and a chain of equivalent statements involving this inequality and the Peierls-Bogoliubov inequality is obtained.

متن کامل

The Shannon-McMillan Theorem for Ergodic Quantum Lattice Systems

We formulate and prove a quantum Shannon-McMillan theorem. The theorem demonstrates the significance of the von Neumann entropy for translation invariant ergodic quantum spin systems on Z-lattices: the entropy gives the logarithm of the essential number of eigenvectors of the system on large boxes. The one-dimensional case covers quantum information sources and is basic for coding theorems.

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Communications in Mathematical Physics

سال: 2004

ISSN: 0010-3616,1432-0916

DOI: 10.1007/s00220-004-1054-2