Difference between revisions of "Zerofield.m"
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fid=zerofield(spin_system,parameters,H,R,K) | fid=zerofield(spin_system,parameters,H,R,K) | ||
| − | == | + | ==Parameters== |
parameters.sweep - the width of the spectral window (Hz) | parameters.sweep - the width of the spectral window (Hz) | ||
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==See also== | ==See also== | ||
| − | [[zulf_abrupt.m]], [[acquire.m]], [[assume.m]] | + | [[zulf_abrupt.m]], [[acquire.m]], [[assume.m]], [[rydmr.m]], [[Built-in_experiments]] |
''Version 2.5, authors: [[Ilya Kuprov]]'' | ''Version 2.5, authors: [[Ilya Kuprov]]'' | ||
Latest revision as of 19:43, 6 June 2026
Budker group style gamma-weighted pulse-acquire sequence in zero field. Uses gamma-weighted initial state (corresponding to using a pre-polarisation magnet at high temperature), gamma-weighted pulse operators and gamma-weighted detection state.
Syntax
fid=zerofield(spin_system,parameters,H,R,K)
Parameters
parameters.sweep - the width of the spectral window (Hz)
parameters.npoints - number time steps in the simulation
parameters.detection - 'uniaxial' to emulate common ZULF
hardware, 'quadrature' for proper
frequency sign discrimination
parameters.flip_angle - pulse flip angle in radians for
protons; for other nuclei, this
will be scaled by the gamma ratio
H - Hamiltonian matrix, received from context function
R - relaxation superoperator, received from context function
K - kinetics superoperator, received from context function
Outputs
fid - free induction decay
Examples
Multiple examples are avilable in examples/nmr_zerofield directory. ZULF simulation for pyridine, matching Figure 3 from http://dx.doi.org/10.1021/ja2112405, is reproduced below.
See also
zulf_abrupt.m, acquire.m, assume.m, rydmr.m, Built-in_experiments
Version 2.5, authors: Ilya Kuprov
