排序方式: 共有23条查询结果,搜索用时 15 毫秒
1.
本文证明了量子代数wslq(2)在左伴随作用下是其自身上的拟模代数,并研究了wslq(2)的局部有限子模(?)(wslq(2))的子模结构. 相似文献
2.
3.
This paper obtains an entangled condition for isotropic-like states by using an atomic map. It constructs a class of bound entangled states from the entangled condition and shows that the partial transposition of the state from the constructed bound entangled class is an edge bound entangled state by using range criterion. 相似文献
4.
Monogamy and polygamy relations characterize the distributions of entanglement in multipartite systems.We provide classes of monogamy and polygamy inequalities of multiqubit entanglement in terms of concurrence, entanglement of formation, negativity, Tsallis-q entanglement, and Rényi-α entanglement, respectively. We show that these inequalities are tighter than the existing ones for some classes of quantum states. 相似文献
5.
The aim of this paper is to study the adjoint action for the quantum algebra Uq(f(K, H)), which is a natural generalization of quantum algebra Uq(sl2) and is regarded as a class of generalized Weyl algebra..The structure theorem of its locally finite subalgebra F(Uq(f(K, H))) is given. 相似文献
6.
设 A 是左、右 Noether 环,x 是 A 的中心正则元.Ax 表示 A 关于乘闭子集{1,x,x2,…}的局部化.M 是 A-模且 x 是 M 的非零因子.本文确定了入射维数IdA(M),IdAx(Mx)与 IdA/xA(M/xM)三者之间的等式关系,并把结果应用于滤环(filtered ring)的 Rees 环,得到了 Ekstr(?)m 的两个结果的统一形式和改进,同时推广了 Li Huishi,M.Van den Bergh 和 F.Van Oystaeyen 的相应结果. 相似文献
7.
我们提出了一个控制的量子隐形传态方案。在这方案中,发送方Alice 在监督者Charlie的控制下以他们分享的三粒子纠缠态作为量子通道将二能级粒子未知态的量子信息忠实的传给了遥远的接受方Bob。我们还提出了借助此传态的控制的量子安全直接通信方案。在保证量子通道安全的情况下, Alice直接将秘密信息编码在粒子态序列上,并在Charlie控制下用此传态方法传给Bob。Bob可通过测量他的量子位读出编码信息。由于没有带秘密信息的量子位在Alice 和Bob之间传送,只要量子通道安全, 这种通信不会泄露给窃听者任何信息, 是绝对安全的。这个方案的的特征是双方通信需得到第三方的许可。 相似文献
8.
A Simultaneous Quantum Secure Direct Communication Scheme between the Central Party and Other M Parties 总被引:7,自引:0,他引:7
下载免费PDF全文
![点击此处可从《中国物理快报》网站下载免费的PDF全文](/ch/ext_images/free.gif)
We propose a simultaneous quantum secure direct communication scheme between one party and other three parties via four-particle GHZ states and swapping quantum entanglement. In the scheme, three spatially separated senders, Alice, Bob and Charlie, transmit their secret messages to a remote receiver Diana by performing a series of local operations on their respective particles according to the quadripartite stipulation. From Alice, Bob, Charlie and Diana's Bell measurement results, Diana can infer the secret messages. Ira perfect quantum channel is used, the secret messages are faithfully transmitted from Alice, Bob and Charlie to Diana via initially shared pairs of four-particle GHZ states without revealing any information to a potential eavesdropper. As there is no transmission of the qubits carrying the secret message in the public channel, it is completely secure for the direct secret communication. This scheme can be considered as a network of communication parties where each party wants to communicate secretly with a central party or server. 相似文献
9.
10.
弱Hopf代数作用与冲积 总被引:1,自引:0,他引:1
本文研究了弱Hopf代数上的冲积并讨论了它约性质.设H是弱Hopf代数,A是左H-摸代数.我们给出了冲积A#H是弱双代数的一个充分条件以及A#H是A可分扩张的一个判定条件.另外,利用积分理论研究了Hopf模代数的有限性条件. 相似文献