supported by the the University Grants Commission(UGC),Government of India(NTA Ref.No.:211610140697,dated:19th April 2022);supported by the Indian Institute of Engineering Science and Technology,Shibpur。
In this paper,we develop a quantum communication protocol for the simultaneous preparation of a two-qubit and a three-qubit state at the positions of two different parties situated spatially apart.For one party,Alice,...
supported by the National Natural Science Foundation of China(Grant No.12274233,62371244).
The SARG04 quantum key distribution protocol can offer greater robustness against photon number splitting attacks than the BB84 protocol that is implemented with weak pulses.In this paper,we propose a tight key analys...
supported by the National Natural Science Foundation of China(Grant Nos.61201253,61572246);the Open Foundation of State Key Laboratory of Networking and Switching Technology(Beijing University of Posts and Telecommunications)(Grant No.SKLNST-2020-2-02);the Open Foundation of Guangxi Key Laboratory of Trusted Software(Grant No.KX202040)。
We investigate bidirectional teleportation that works in a fair and efficient manner. Two explicit protocols are proposed to realize bidirectional teleportation with a controller. One is a symmetric protocol for two-q...
Supported by the National Natural Science Foundation of China under Grant No.61402407
Recently, Liu et al. proposed a two-party quantum private comparison(QPC) protocol using entanglement swapping of Bell entangled state(Commun. Theor. Phys. 57(2012) 583). Subsequently, Liu et al. pointed out that in L...
Supported by the National Natural Science Foundation of China under Grant Nos.61572297,61303199,61272514,and 61373131;the Shandong Provincial Natural Science Foundation of China under Grant Nos.ZR2013FM025,ZR2013FQ001;ZR2014FM003,and ZY2015YL018;the Shandong Provincial Outstanding Research Award Fund for Young Scientists of China under Grant Nos.BS2015DX006and BS2014DX007;the National Development Foundation for Cryptological Research,China under Grant No.MMJJ201401012;the Priority Academic Program Development of Jiangsu Higher Education Institutions and Jiangsu Collaborative Innovation Center on Atmospheric Environment and Equipment Technology Funds;the Shandong Academy of Sciences Youth Fund Project,China under Grant Nos.2015QN003 and 2013QN007
In 2011, Qu et al. proposed a quantum information hiding protocol based on the entanglement swapping of χ-type quantum states. Because a χ-type state can be described by the 4-particle cat states which have good sym...
Supported by the National Natural Science Foundation of China under Grant No.61402058;Science and Technology,Sichuan Province of China under Grant No.2013GZX0137;Fund for Young Persons Project of Sichuan Province of China under Grant No.12ZB017;the Foundation of Cyberspace Security Key Laboratory of Sichuan Higher Education Institutions under Grant No.szjj2014-074
A controlled deterministic secure quantum communication(CDSQC) protocol is proposed based on threeparticle GHZ state in X-basis.Only X-basis and Z_1Z_2X_3-basis(composed of Z-basis and X-basis) measurement are require...
Supported by the National Natural Science Foundation of China under Grant Nos.61170270,61003290,61170221,61100205;the Specialized Research Fund for the Doctoral Program of Higher Education under Grant Nos.20091103120014,20090005110010;Beijing Natural Science Foundation under Grant No.4122008;the ISN open Foundation
In this paper, a protocol for quantum millionaire problem with continuous variables is proposed. In the protocol, two participants can compare the values of their fortune with the assistance of a semi-trusted third pa...
Supported by the National Natural Science Foundation of China under Grant Nos.61170272, 61272514, 61003287, and 61070163;Asia Foresight Program under National Natural Science Foundation of China under Grant No.61161140320;the Specialized Research Fund for the Doctoral Program of Higher Education under Grant No.20100005120002;the Fok Ying Tong Education Foundation under Grant No.131067;the Shandong Provincial Natural Science Foundation, China under Grant No.ZR2011FM023;the Shandong Province Outstanding Research Award Fund for Young Scientists of China under Grant No.BS2011DX034;the Fundamental Research Funds for the Central Universities under Grant No.BUPT2012RC0221
By analyzing the basic properties of unitary transformations used in a quantum secure direct communication (QSDC) protocol, we show the main idea why a covert channel can be established within any QSDC channel which e...
Supported by the High Technology Research and Development Program of China (863 Program,2011AA01A107);Beijing Municipal Special Fund for Cultural and Creative Industries(2009);the Beijing Municipal Natural Science Foundation (4112052)
In this paper,a quantum private comparison protocol is proposed based on bell entangled states.In our protocol,two parties can compare the equality of their information with the help of a semi-honest third party.The c...
Supported by National Natural Science Foundation of China under Grant Nos.60878059,11004033;Natural Science Foundation of Fujian Province under Grant No.2010J01002
Inspired by the protocol presented by Bagherinezhad and Karimipour[Phys.Rev.A 67(2003) 044302], which will be shown to be insecure,we present a multipartite quantum secret sharing protocol using reusable GreenbergerHo...