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- Tsinghua UniversityCN44 papers
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14 papers · 1 filter
Quantum motion on a torus as a submanifold problem in a generalized Dirac's theory of second-class constraints
D. M. Xun, Q. H. Liu, X. M. Zhu
A generalization of the Dirac's canonical quantization theory for a system with second-class constraints is proposed as the fundamental commutation relations that are constituted b…
The negative probabilities and information gain in weak measurements
Xuanmin Zhu, Qun Wei, Quanhui Liu +1
We study the outcomes in a general measurement with postselection, and derive upper bounds for the pointer readings in weak measurement. Using the idea of weak measurement, we stud…
Secure and Reliable Transmission with Cooperative Relays in Two-Hop Wireless Networks
Yulong Shen, Xiaohong Jiang, Jianfeng Ma +1
This work considers the secure and reliable information transmission in two-hop relay wireless networks without the information of both eavesdropper channels and locations. While t…
A conjecture on equitable vertex arboricity of graphs
Xin Zhang, Jian-Liang Wu
Wu, Zhang and Li [4] conjectured that the set of vertices of any simple graph can be equitably partitioned into subsets so that each of them induces a…
Equitable vertex arboricity of graphs
Jian-Liang Wu, Xin Zhang, Hailun Li
An equitable -tree-coloring of a graph is a coloring to vertices of such that the sizes of any two color classes differ by at most one and the subgraph induced by…
Secondary Constructions of Bent Functions and Highly Nonlinear Resilient Functions
Fengrong Zhang, Claude Carlet, Yupu Hu +1
In this paper, we first present a new secondary construction of bent functions (building new bent functions from two already defined ones). Furthermore, we apply the construction u…