Default constructor for MPS

+1 vote
asked Oct 9 by JonSpalding (500 points)

Hi,

Is there a way to update the MPS constructor so that the initial state has some default values? This would be a nice feature.

Thanks

Jon

commented Oct 26 by miles (19,810 points)
Hi Jon, could you clarify which behavior you'd like? Which version of the MPS constructor are you referring to specifically? The one that just takes a site set makes a random product state MPS. There is also one that takes an InitState which makes a specific product state that you can request. Thanks -
commented Oct 27 by JonSpalding (500 points)
I think that is all I wanted to know; do you know properties of the initial random MPS?
commented Oct 28 by miles (19,810 points)
Ok thanks for clarifying. So it's a product state with totally random entries for each tensor (the tensor for each site). The only constraint on the random entries is that they are always real.

1 Answer

0 votes
answered Oct 28 by miles (19,810 points)

(See answer to question above.)

Jon, I updated the MPS documentation page to clarify that the product state made by the MPS(sites) constructor is real-valued.

Here is the link:

http://itensor.org/docs.cgi?page=classes/mps

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