Arbitrary precision composite pulses for NMR quantum computing.

نویسندگان

  • William G Alway
  • Jonathan A Jones
چکیده

We discuss the implementation of arbitrary precision composite pulses developed using the methods of Brown et al. [K.R. Brown, A.W. Harrow, I.L. Chuang, Arbitrarily accurate composite pulse sequences, Phys. Rev. A 70 (2004) 052318]. We give explicit results for pulse sequences designed to tackle both the simple case of pulse length errors and the more complex case of off-resonance errors. The results are developed in the context of NMR quantum computation, but could be applied more widely.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Resonance Offset Tailored Pulses for NMR Quantum Computation

Composite pulses [1, 2] play an important role in many NMR experiments, as they allow the effects of experimental imperfections, such as pulse length errors and offresonance effects, to be reduced. Such pulses can also prove useful in NMR implementations of quantum information processing devices, such as simple NMR quantum computers [3, 4, 5, 6, 7], where they act to reduce systematic errors in...

متن کامل

A Simple and Convenient Measure of NMR Rotor Fidelity

Composite pulses [1, 2, 3] play an important role in many NMR experiments, as they allow the effects of experimental imperfections, such as pulse length errors and off-resonance effects, to be reduced. In conventional NMR experiments these pulses are used to implement particular transformations on the Bloch sphere, such as inversion, and their quality can be easily assessed by determining the e...

متن کامل

Product Operator Formalism for the Description of Nmr Pulse Experiments

6. I. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. Approaches for the Analysis of Pulse Experiments 2.1. Classical vector models 2.2. Semiclassical vector models 2.3. Density operator approach 2.4. Product operator formalism Nomenclature of Product Operators Pictorial Representations of Product Operators Evolution of Product Operators 5.1. Chemical shifts 5.2. Spin-spin couplings 5.3. Radio-freque...

متن کامل

Quantum Computing by Two-Dimensional NMR using Spin- and Transition-Selective Pulses

Quantum computing using two-dimensional NMR has recently been described using scalar coupling evolution technique [J. Chem. Phys., 109, 10603 (1998)]. In the present paper, we describe two-dimensional NMR quantum computing with the help of selective pulses. A number of logic gates are implemented using two and three qubits with one extra observer spin. Some many-in-one gates (or Portmanteau gat...

متن کامل

NMR Quantum Computing

Quantum computing is at the forefront of the scientific and technological research and development of the 21 century. NMR quantum computing is one the most mature technologies for implementing quantum computation. It utilizes the motion of spins of nuclei in custom-designed molecules manipulated by RF pulses. The motion is on a nanoor microscopic scale governed by the Schrödinger equation in qu...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Journal of magnetic resonance

دوره 189 1  شماره 

صفحات  -

تاریخ انتشار 2007