Meridional composite pulses for low-field magnetic resonance

Abstract

We discuss procedures for error-tolerant spin control in environments that permit transient, large-angle reorientation of magnetic bias field. Short sequences of pulsed, non-resonant magnetic field pulses in a laboratory-frame meridional plane are derived. These are shown to have band-pass excitation properties comparable to established amplitude-modulated, resonant pulses used in high, static-field magnetic resonance. Using these meridional pulses, we demonstrate robust $z$ inversion in proton (${}^1$H) nuclear magnetic resonance near earth's field.

4 figures. Supplemental Material as PDF

References in corpus (4)

• Quantum Computing with NMR
• Instrumentation for nuclear magnetic resonance in zero and ultralow magnetic field
• Further analysis of some symmetric and antisymmetric composite pulses for tackling pulse strength errors
• Decoupling of Spin Decoherence Paths near Zero Magnetic Field

Cited by in corpus (1)

• Three-state coherent control using narrowband and passband sequences