[help] How to compute the expectation value of 4 operators( two creation and two destruction operators)
Hello all, I have been trying to compute the expectation value of cdag(1) c(2) cdag(3) c(4) where two creation and two destruction operators are involved and 1, 2 ,3 and 4 label the sites in a spinless Hubbard model. Could anyone kindly tell me how I should define this in the parameter file or in the models.xml? Thanks a lot! Best, Jun
Hi Jun, This is not currently implemented but depending on which code you use it can be added. Matthias On 25 Jun 2010, at 09:59, Jun Wen wrote:
Hello all,
I have been trying to compute the expectation value of cdag(1) c(2) cdag(3) c(4) where two creation and two destruction operators are involved and 1, 2 ,3 and 4 label the sites in a spinless Hubbard model. Could anyone kindly tell me how I should define this in the parameter file or in the models.xml? Thanks a lot!
Best,
Jun
Hello, Matthias, Thanks! I am using Exact Diagonalization to calculate some bond-bond correlation. Will ALPS 2.0 support it? Best, Jun On Fri, Jun 25, 2010 at 11:17 PM, Matthias Troyer <troyer@phys.ethz.ch>wrote:
Hi Jun,
This is not currently implemented but depending on which code you use it can be added.
Matthias
On 25 Jun 2010, at 09:59, Jun Wen wrote:
Hello all,
I have been trying to compute the expectation value of cdag(1) c(2) cdag(3) c(4) where two creation and two destruction operators are involved and 1, 2 ,3 and 4 label the sites in a spinless Hubbard model. Could anyone kindly tell me how I should define this in the parameter file or in the models.xml? Thanks a lot!
Best,
Jun
-- Jun Wen, Graduate Research Assistant Office: RLM 7.312 Department of Physics 1 University Station C1600 The University of Texas at Austin TX, 78712 Email: jwen@physics.utexas.edu junwen.ut@gmail.com
participants (2)
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Jun Wen
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Matthias Troyer