On the adiabatic quantum evolution of a single qubit

被引：6

作者：

Andrecut, M ^{[1
]}

Ali, MK ^{[1
]}

机构：

[1] Univ Lethbridge, Dept Phys, Lethbridge, AB T1K 3M4, Canada

来源：

INTERNATIONAL JOURNAL OF QUANTUM INFORMATION | 2004年 / 2卷 / 04期

关键词：

adiabatic quantum evolution; quantum computing;

D O I：

10.1142/S0219749904000432

中图分类号：

TP301 [理论、方法];

学科分类号：

081202 ;

摘要：

The adiabatic quantum evolution method has generally been studied for the case where the linear interpolation from an initial to a final Hamiltonian is taken. However, this approach fails even for the case of a single qubit, when the initial and final states are orthogonal or almost orthogonal. In this case, the evolution time becomes infinite. We show that by using a simple nonlinear interpolation method the adiabatic evolution can be done in finite time, regardless of the orthogonality of the initial and final states.

引用

页码：447 / 452

页数：6