scholarly journals Experimental Quantum Message Authentication with Single Qubit Unitary Operation

2021 ◽  
Vol 11 (6) ◽  
pp. 2653
Author(s):  
Min-Sung Kang ◽  
Yong-Su Kim ◽  
Ji-Woong Choi ◽  
Hyung-Jin Yang ◽  
Sang-Wook Han
Keyword(s):  
Authentication Protocol ◽  
Message Authentication ◽  
Unitary Operation ◽  
Linear Combinations ◽  
Single Qubit ◽  
Original Message ◽  
Quantum Encryption

We have developed a quantum message authentication protocol that provides authentication and integrity of an original message using single qubit unitary operations. Our protocol mainly consists of two parts: quantum encryption and a correspondence check. The quantum encryption part is implemented using linear combinations of wave plates, and the correspondence check is performed using Hong–Ou–Mandel interference. By analyzing the coincidence counts of the Hong–Ou–Mandel interference, we have successfully proven the proposed protocol experimentally, and also showed its robustness against an existential forgery.

TRIPARTITION OF ARBITRARY SINGLE-QUBIT QUANTUM INFORMATION BY USING ASYMMETRIC FOUR-QUBIT W STATE

2009 ◽  
Vol 07 (01) ◽  
pp. 349-355 ◽  
Author(s):  
YI-MIN LIU ◽  
XIAO-FENG YIN ◽  
WEN ZHANG ◽  
ZHAN-JUN ZHANG
Keyword(s):  
Quantum Information ◽  
The Other ◽  
W State ◽  
Unitary Operation ◽  
Quantum Channels ◽  
Single Qubit

In this paper we propose a four-party scheme for a sender to achieve the tripartition of his/her arbitrary single-qubit quantum information among three recipients via an asymmetric four-qubit W state as quantum channels. In the scheme, if and only if, the three recipients cooperate together, they can perfectly retrieve the sender's quantum information by performing first two 2-qubit collective unitary operations and then a single-qubit unitary operation. The scheme is symmetric with respect to the reconstruction for any recipient can conclusively recover the quantum information with the other two's helps.

Cyclic-controlled quantum operation teleportation in noisy environment

2019 ◽  
Vol 17 (07) ◽  
pp. 1950052
Author(s):  
Ren-Ju Liu ◽  
Ming-Qiang Bai ◽  
Fan Wu ◽  
Yu-Chun Zhang
Keyword(s):  
Quantum System ◽  
Unitary Operation ◽  
Quantum Operation ◽  
Noisy Environment ◽  
Noisy Environments ◽  
Final State ◽  
Single Qubit ◽  
Decoherence Rate ◽  
Qubit Operations ◽  
Bit Flip

A scheme is proposed for cyclic-controlled quantum operation teleportation (CCQOT) for three sides with EPR and cluster states. Under the control of David, Alice can implement an unknown single-qubit unitary operation on the remote Bob’s quantum system, while Bob can execute a single-qubit unitary operation on Charlie’s quantum system and Charlie can also perform an unknown single-qubit unitary operation on Alice’s quantum system. Our scheme can be generalized to [Formula: see text]) agents involved in the cycle to realize the transmission of single-qubit operations. Moreover, by replacing the quantum channels, we can change the cyclic direction of controlled qunatum operation teleportation (CQOT) from clockwise to counterclockwise. In addition, we discuss our scheme in four types of noisy environments (amplitude-damping, phase-damping, bit-flip and phase-flip noisy environment), and use fidelity to analyze the amount of information lost in the process of CCQOT due to noise. The results show that the fidelity is determined by decoherence rate and amplitude parameters of the final state.

REMOTE INFORMATION CONCENTRATION BY W STATE

2013 ◽  
Vol 27 (26) ◽  
pp. 1350137 ◽  
Author(s):  
JIA-YIN PENG ◽  
MING-QIANG BAI ◽  
ZHI-WEN MO
Keyword(s):  
Quantum Information ◽  
Quantum Channel ◽  
Bell State ◽  
W State ◽  
Unitary Operation ◽  
Bell State Measurement ◽  
Single Qubit ◽  
State Measurement ◽  
Global Operations ◽  
Peculiar Phenomenon

Employing the six-particle W state as the quantum channel in this paper, we investigate remote information concentration (RIC) which is the reverse process of the 1→5 optimal asymmetric economical phase-covariant telecloning (OAEPCT). To achieve the task, Bell state measurement and unitary operation are needed. It is shown that the quantum information initially distributed in five spatially separated qubits can be remotely and probabilistically concentrated back to a single qubit without performing any global operations. The result shows a peculiar phenomenon that the RIC is not always performed perfectly. It can be achieved with certain probability.

scholarly journals Anonymous Group Message Authentication Protocol for LTE-based V2X Communications

2018 ◽  
Vol 1 (2) ◽  
pp. e25 ◽  
Author(s):  
Dongxiao Liu ◽  
Jianbing Ni ◽  
Xiaodong Lin ◽  
Xuemin Sherman Shen
Keyword(s):  
Authentication Protocol ◽  
Message Authentication
Sign in / Sign up

Export Citation Format

Share Document