Someone correct me if I'm wrong, but I believe this isn't very directly feasible. The ground state vector from the exact ground state will be in a different basis and have a different length than the ground state vector from DMRG (it's a truncated basis after all). ________________________________________ From: comp-phys-alps-users-bounces@phys.ethz.ch [comp-phys-alps-users-bounces@phys.ethz.ch] On Behalf Of Gang Chen [chggst@physics.ucsb.edu] Sent: Saturday, April 25, 2009 9:55 AM To: comp-phys-alps-users@phys.ethz.ch Subject: Re: [ALPS-users] Comp-phys-alps-users Digest, Vol 37, Issue 18
Thanks, I want to compute the overlap between the exact ground state and the state I generated from other method.
best, Gang
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Today's Topics:
1. extract the ground state from DMRG or Exact diagonalization (Gang Chen) 2. Re: extract the ground state from DMRG or Exact diagonalization (Justin David Peel)
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Message: 1 Date: Fri, 24 Apr 2009 14:57:02 -0700 From: Gang Chen <chggst@physics.ucsb.edumailto:chggst@physics.ucsb.edu> Subject: [ALPS-users] extract the ground state from DMRG or Exact diagonalization To: comp-phys-alps-users@phys.ethz.chmailto:comp-phys-alps-users@phys.ethz.ch Message-ID: <3924ab970904241457k17ab51b1tbd002d09ae7287e@mail.gmail.commailto:3924ab970904241457k17ab51b1tbd002d09ae7287e@mail.gmail.com> Content-Type: text/plain; charset="iso-8859-1"
Hi All,
If I use DMRG or Exact diagonalization to find the ground state of my Hamiltonian. How can I extract the ground state vector (the numerical vector) from my results?
best,
-- GANG CHEN Department of Physics University of California Santa Barbara, CA 93106 Office: Broida 6216 Phone: 805-893-5260 Fax: 805-893-3378