Decomposition of Diagonal Hermitian Quantum Gates Using Multiple-Controlled Pauli Z Gates

• DOI: 10.1145/2629526
• Publication Date: 2015-01-05T13:27:09Z
• Authors: Mahboobeh Houshmand; Morteza Saheb Zamani; Mehdi Sedighi; Mona Arabzadeh
• Keywords: Controlled NOT gate; Quantum circuit; Pauli matrices; Toffoli gate; Quantum Logic

Quantum logic decomposition refers to decomposing a given quantum gate set of physically implementable gates. An approach has been presented decompose arbitrary diagonal gates multiplexed-rotation around z axis. In this article, special class gates, namely Hermitian is considered and new perspective the problem with respect these presented. It first shown that can be decomposed solely consists multiple-controlled Z Then binary representation for introduced. representations form basis vector space produced by all Moreover, mapped writing its in specific mentioned previously. CZ suggested two-qubit library, instead previously used CNOT gate. Experimental results show proposed lead circuits lower costs comparison previous ones.