Search found 123 matches

by kuprov
Thu Dec 22, 2022 8:45 am
Forum: Spinach support
Topic: gradient pulse simulation
Replies: 1
Views: 70

Re: gradient pulse simulation

Of course it can. Use the imaging() context (see imaging examples for how to use it); it returns gradients as operators. At that point, gradient operators may be used in exactly the same way as pulse operators, including in shaped pulse functions, such as shaped_pulse_xy(), including simultaneously ...
by kuprov
Wed Dec 21, 2022 6:03 am
Forum: Spinach support
Topic: Homospoil or coherence order selection in 'zeeman-hilb' formalism
Replies: 4
Views: 110

Re: Homospoil or coherence order selection in 'zeeman-hilb' formalism

Okay, I'll cook up something - it will be slow af, but it will work.
by kuprov
Tue Dec 20, 2022 11:26 am
Forum: Spinach support
Topic: Homospoil or coherence order selection in 'zeeman-hilb' formalism
Replies: 4
Views: 110

Re: Homospoil or coherence order selection in 'zeeman-hilb' formalism

How's this looking? In Hilbert space, computationally efficient coherence selection is non-trivial because (unlike in spherical tensor notation) the basis is not already sorted by single-spin coherence order.
by kuprov
Tue Dec 13, 2022 7:28 am
Forum: Spinach support
Topic: Solid Effect DNP Resonance Confusion
Replies: 5
Views: 125

Re: Solid Effect DNP Resonance Confusion

Alright - I think I can do the syntax matching. :) Working on it...
by kuprov
Mon Dec 12, 2022 7:58 pm
Forum: Spinach support
Topic: Solid Effect DNP Resonance Confusion
Replies: 5
Views: 125

Re: Solid Effect DNP Resonance Confusion

It would actually be very useful to know what syntax fees more natural - I can make alterations of course. How would you wish that parametrisation to work?
by kuprov
Sun Dec 11, 2022 8:21 am
Forum: Spinach support
Topic: Solid Effect DNP Resonance Confusion
Replies: 5
Views: 125

Re: Solid Effect DNP Resonance Confusion

Okay, in the order of the original post: 1. The sys.magnet parameter does set the centre of the sweep - this is the field that goes into the background Hamiltonian in Line 70 of dnp_field_sweep.m function. The microwave offset is then added in Line 78, and the field offset inside the loop. The code ...
by kuprov
Sun Nov 13, 2022 2:43 pm
Forum: Spinach support
Topic: Trying to simulate DARR
Replies: 1
Views: 176

Re: Trying to simulate DARR

Dear Rajat, of course it would slow down as you add more spins - without approximations, the complexity of Liouville space simulations of spin-1/2 systems grows very rapidly. Matrix dimensions go as 4^n, and then matrix-vector multiplication complexity scales quadratically with the dimension, so we ...
by kuprov
Wed Oct 12, 2022 9:27 am
Forum: General discussion
Topic: Page can't be found!
Replies: 4
Views: 1686

Re: Page can't be found!

Back online! The hosting provider updated PHP and some updates were needed for WordPress. Thanks for letting us know.
by kuprov
Wed Oct 12, 2022 9:19 am
Forum: General discussion
Topic: Page can't be found!
Replies: 4
Views: 1686

Re: Page can't be found!

Use this direct link for now:

https://spindynamics.org/documents/spinach_2_7_6009.zip - that's the latest Spinach, it includes DEERNet and the descrambling functionality. The documentation Wiki (http://spindynamics.org/wiki/index.php?title=Main_Page) appears to be up.
by kuprov
Wed Oct 12, 2022 9:11 am
Forum: General discussion
Topic: Page can't be found!
Replies: 4
Views: 1686

Re: Page can't be found!

Thanks for the heads-up, I am on the phone with the hosting provider.