close quantum system

Cathy

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Apr 17, 2015, 11:12:04 AM4/17/15

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Hello
I am working on an close fermionic 1-D system whose hamiltonian is based on AA model. To get the dynamics with interaction and disorder, I tried to use qutip. I am new in quantum numerical calculation, so am not sure whether the function mesolve is applicable in my case. Cuz, LIndblad method is deisnged for open system, is that correct?

Paul Nation

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Apr 17, 2015, 4:44:32 PM4/17/15

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It will work for both open and closed. The mcsolve function also reduces to the schrodinger equation if no collapse operators are given.

Paul

On Apr 18, 2015, at 00:12, Cathy <cathy....@gmail.com> wrote:

Hello
I am working on an close fermionic 1-D system whose hamiltonian is based on AA model. To get the dynamics with interaction and disorder, I tried to use qutip. I am new in quantum numerical calculation, so am not sure whether the function mesolve is applicable in my case. Cuz, LIndblad method is deisnged for open system, is that correct?

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Cathy

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Apr 20, 2015, 3:50:29 AM4/20/15

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Thanks a lot!

Cathy Wu

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Apr 21, 2015, 7:50:54 AM4/21/15

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but can I use mesolve for a close system? Was Lindblad used to evolve the system? if not, what algorithm was applied?

thanks a lot

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Paul Nation

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Apr 21, 2015, 8:07:49 AM4/21/15

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If there are no collapse terms, the master equation reduces to the Heisenberg equation.

Paul

Paul Nation

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Apr 21, 2015, 8:14:09 AM4/21/15

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Actually the schrodinger equation since the density matrix does not evolve in the heisenberg picture. Sorry

On Apr 21, 2015, at 20:50, Cathy Wu <cathy....@gmail.com> wrote:

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