منابع مشابه
Single-copy entanglement in a gapped quantum spin chain.
The single-copy entanglement of a given many-body quantum system is defined [J. Eisert and M. Cramer, Phys. Rev. A 72, 042112 (2005)10.1103/PhysRevA.72.042112] as the maximal entanglement deterministically distillable from a bipartition of a single specimen of that system. For critical (gapless) spin chains, it was recently shown that this is exactly half the von Neumann entropy [R. Orús, J. I....
متن کاملEntanglement of Pure States for a Single Copy
An optimal local conversion strategy between any two pure states of a bipartite system is presented. It is optimal in that the probability of success is the largest achievable if the parties which share the system, and which can communicate classically, are only allowed to act locally on it. The study of optimal local conversions sheds some light on the entanglement of a single copy of a pure s...
متن کاملMultiple-copy entanglement transformation and entanglement catalysis
We prove that any multiple-copy entanglement transformation fS. Bandyopadhyay, V. Roychowdhury, and U. Sen, Phys. Rev. A 65, 052315 s2002dg can be implemented by a suitable entanglement-assisted local transformation fD. Jonathan and M. B. Plenio, Phys. Rev. Lett. 83, 3566 s1999dg. Furthermore, we show that the combination of multiple-copy entanglement transformation and the entanglement-assiste...
متن کاملOn Copy Avoidance in Single AssignmentLanguagesSaumya
Copy avoidance refers to the safe replacement, at compile time, of copying operations by destructive updates in single-assignment languages. Conceptually , the problem can be divided into two components: identifying memory cells that can safely be reused at a program point via destructive updating; and deciding how to actually reuse such cells. Most of the work on this problem, to date, has foc...
متن کاملnt - p h / 05 09 00 2 v 2 15 S ep 2 00 5 On single - copy entanglement
In a recent paper Eisert and Cramer [1] investigated the following problem from quantum information theory: Given an initial state of a total system, what maximally entangled state between two subsystems can be obtained from it by local transformations in both parts, together with classical communication ? The general answer is that the spectrum of the reduced density matrix for the new state m...
متن کاملذخیره 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: Journal of Statistical Mechanics: Theory and Experiment
سال: 2005
ISSN: 1742-5468
DOI: 10.1088/1742-5468/2005/11/p11002