A Geometric Characterization of Quantum Gates

Autor: Yi-Bin He, Li Wang
Rok vydání: 2019
Předmět:
Zdroj: International Journal of Theoretical Physics. 58:2218-2227
ISSN: 1572-9575
0020-7748
DOI: 10.1007/s10773-019-04112-9
Popis: Quantum gates are unitary operators and pure states are denoted by unit vectors in state spaces. A quantum gate (i.e., unitary operator) maps convex combinations of vectors in the closed unit ball of the state space to themselves. On the contrary, whether or not some kinds of convex combinations preserving maps on the closed unit ball of the state space are unitary. In the paper, we devote to giving an answer to the inverse problem.
Databáze: OpenAIRE
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