Difference between revisions of "Correlation.m"
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Correlation order selection function - keeps only the specified orders of spin correlation in the state vector. This is useful as a replacement for gradients and phase cycles because correlation order filtering can be accomplished analytically, by just picking out the required correlation orders and zeroing everything else. | Correlation order selection function - keeps only the specified orders of spin correlation in the state vector. This is useful as a replacement for gradients and phase cycles because correlation order filtering can be accomplished analytically, by just picking out the required correlation orders and zeroing everything else. | ||
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==See also== | ==See also== | ||
| − | [[ | + | [[Kernel_functions#Coherence_order_selection|Coherence order selection]] |
| + | [[Kernel_utilities#State_space_indexing_and_manipulation|State space indexing and manipulation]] | ||
| − | ''Version 2. | + | |
| + | ''Version 2.8, authors: [[Ilya Kuprov]], [[Luke Edwards]]'' | ||
Revision as of 10:58, 24 January 2024
Correlation order selection function - keeps only the specified orders of spin correlation in the state vector. This is useful as a replacement for gradients and phase cycles because correlation order filtering can be accomplished analytically, by just picking out the required correlation orders and zeroing everything else.
Syntax
rho=correlation(spin_system,rho,correlation_orders,spins)
Arguments
rho - a state vector or a horizontal stack thereof orders - a row vector of correlation orders to keep spins - which spins to consider (e.g. '1H', '13C', 'all')
Outputs
rho - the state vector with the undesired orders of
spin correlations zeroed out
Notes
Because quantum number information is required for this function to work, it is restricted to sphten-liouv formalism. It supports Fokker-Planck direct products.
See also
State space indexing and manipulation
Version 2.8, authors: Ilya Kuprov, Luke Edwards
