Hadamard type operations for qubits

被引：6
|
作者：
Maitra, Arpita [1 ]
Parashar, Preeti [1 ]
机构：
[1] Indian Stat Inst, Phys & Appl Math Unit, Kolkata 700108, India
来源：
INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2006年 / 4卷 / 04期
关键词：
unitary operations; Hadamard gate; Bloch sphere; qubits;
D O I：
10.1142/S0219749906002055
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
We obtain the most general ensemble of qubits for which it is possible to design a universal Hadamard gate. These states, when geometrically represented on the Bloch sphere, give a new trajectory. We further consider some Hadamard "type" operations and find ensembles of states for which such transformations hold. The unequal superposition of a qubit and its orthogonal complement is also investigated.
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页码：653 / 664
页数：12
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