NMR simulation of an eight-state quantum system

被引：41

作者：

Khitrin, AK ^{[1
]}

Fung, BM ^{[1
]}

机构：

[1] Univ Oklahoma, Dept Chem & Biochem, Norman, OK 73019 USA

来源：

PHYSICAL REVIEW A | 2001年 / 64卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.64.032306

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The propagation of excitation along a one-dimensional chain of atoms is simulated by means of nuclear magnetic resonance (NMR). The physical system used as an analog quantum computer is a nucleus of Cs-113 (spin 7/2) in a liquid-crystalline matrix. First, a pseuodpure state of the spin system is prepared. Then, the Hamiltonian of migration is simulated by using a special seven-frequency pulse. The dynamics is monitored by following the transfer of population from one of the eight spin energy levels to the others.

引用

页数：4

共 16 条

[1] Ensemble quantum computing by NMR spectroscopy [J].

Cory, DG ;

Fahmy, AF ;

Havel, TF .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 1997, 94 (05) :1634-1639

[2] RAPID SOLUTION OF PROBLEMS BY QUANTUM COMPUTATION [J].

DEUTSCH, D ;

JOZSA, R .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1992, 439 (1907) :553-558

[3] From regular to erratic quantum dynamics in long spin 1/2 chains with an XY Hamiltonian [J].

Fel'dman, EB ;

Bruschweiler, R ;

Ernst, RR .

CHEMICAL PHYSICS LETTERS, 1998, 294 (4-5) :297-304

[4] SIMULATING PHYSICS WITH COMPUTERS [J].

FEYNMAN, RP .

INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS, 1982, 21 (6-7) :467-488

[5] Bulk spin-resonance quantum computation [J].

Gershenfeld, NA ;

Chuang, IL .

SCIENCE, 1997, 275 (5298) :350-356

[6] Quantum mechanics helps in searching for a needle in a haystack [J].

Grover, LK .

PHYSICAL REVIEW LETTERS, 1997, 79 (02) :325-328

[7] NMR quantum computation [J].

Jones, JA .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 2001, 38 (04) :325-360

[8] Multiqubit spin [J].

Kessel', AR ;

Ermakov, VL .

JETP LETTERS, 1999, 70 (01) :61-65

[9] Method of multifrequency excitation for creating pseudopure states for NMR quantum computing [J].

Khitrin, Anatoly ;

Sun, Hong ;

Fung, B.M. .

Physical Review A - Atomic, Molecular, and Optical Physics, 2001, 63 (02) :020301-020301

[10] Nuclear magnetic resonance quantum logic gates using quadrupolar nuclei [J].

Khitrin, AK ;

Fung, BM .

JOURNAL OF CHEMICAL PHYSICS, 2000, 112 (16) :6963-6965

← 1 2 →