No-Cloning and No-Deleting theorems through the existence of Incomparable states under LOCC

A Bhar, I Chattopadhyay, D Sarkar - Quantum Information Processing, 2007 - Springer
No-cloning and No-deleting theorems are verified with the constraint on local state
transformations via the existence of incomparable states. Assuming the existence of exact …

Character of locally inequivalent classes of states and entropy of entanglement

I Chattopadhyay, D Sarkar - Physical Review A—Atomic, Molecular, and …, 2008 - APS
In this Rapid Communication we have established the physical character of pure bipartite
states with the same amount of entanglement in the same Schmidt rank that either they are …

[PDF][PDF] 量子比特的普适远程翻转和克隆

李艳玲, 冯健, 孟祥国, 梁宝龙 - 物理学报, 2007 - wulixb.iphy.ac.cn
提出一种把量子隐形传态, 最佳普适量子比特翻转和最佳普适量子克隆三者结合起来的量子比特
普适远程翻转和克隆方案. 当发送者和处于不同地点的三个接收者共享一个特定的四粒子纠缠态 …

General classes of impossible operations through the existence of incomparable states

I Chattopadhyay, D Sarkar - arXiv preprint quant-ph/0609226, 2006 - arxiv.org
In this work we show that the most general class of anti-unitary operators are nonphysical in
nature through the existence of incomparable pure bipartite entangled states. It is also …

Character of superposed states under deterministic LOCC

A Bhar, A Sen, D Sarkar - Quantum information processing, 2013 - Springer
In this paper we investigate the effect of superposition of states on local conversion of pure
bipartite states under deterministic LOCC. We are able to form a bridge between …

Entanglement-A queer in the world of quantum: some perspectives

I Chattopadhyay - arXiv preprint arXiv:0805.2056, 2008 - arxiv.org
The work is intended to represent some interesting and apparently peculiar features of
entangled system in both pure as well as mixed states level. In the pure state level, we are …

Quantum superimposing multiple anti-cloning machine

Y Li, J Feng, B Liang, Y Yu - International Journal of Theoretical Physics, 2007 - Springer
We prove that the nonorthogonal states randomly selected from a set can evolve into a
linear superposition of multiple copies of anti-cloned state (an orthogonal state along with …

Universal quantum multiple tele-flipping and tele-cloning of an arbitrary qubit

YL Li, J Feng, XG Meng, YF Yu - Physica A: Statistical Mechanics and its …, 2008 - Elsevier
One scheme for universal quantum multiple tele-flipping and tele-cloning of an arbitrary
qubit is proposed. Our scheme combines three processes of quantum teleportation, optimal …

[PDF][PDF] Incomparability through Superposition of Many States under LOCC

A Bhar, SP Sinha - Journal of Quantum Information Science, 2011 - researchgate.net
In this paper we investigate the global property of the states constructed through
superposition of many states by using the concept of incomparability under LOCC as the …

Quantum superimposing multiple cloning-cum-complementing machine

YL Li, J Feng, BL Liang, XG Meng - Journal of Physics A …, 2007 - iopscience.iop.org
We prove that the nonorthogonal states randomly selected from a set can evolve into a
linear superposition of multiple original and orthogonal complementing states with failure …