Experimental realization of quantum cheque using a five-qubit quantum computer

• DOI: 10.1007/s11128-017-1762-0
• Publication Date: 2017-11-12T07:48:10Z
• Authors: Bikash K. Behera; Anindita Banerjee; Prasanta K. Panig...
• Keywords: Quantum Physics; 0103 physical sciences; FOS: Physical sciences; Quantum Physics (quant-ph); 01 natural sciences

6 pages, 8 figures<br/>We demonstrate the implementation of quantum cheque, proposed by Roy Moulick and Panigrahi [Quantum Inf. Process (2016) 15: 2475], using the five-qubit IBM quantum computer. Appropriate single qubit, CNOT and Fredkin gates have been implemented for the realization of the quantum cheque transaction in a quantum networked banking system. Quantum state tomography reveals the accuracy of the implementation with comparable results from the theoretical and experimental density matrices.<br/>