Basis for a fermion chain
Posted: 19 Dec 2020, 19:57
Dear TeNPy community,
This bothers me for quite a while. Is the basis for the MPS of a fermion chain the occupation-number-representation basis? Or it's just the direct product basis as in a spin chain?
Here's my naive understanding. Although at the start we expand the state of a fermion chain under the occupation-number basis, the Jordan-Wigner transformation of the fermionic Hamiltonian already takes care of the fermionic property so the occupation-number basis is equivalent to the direct product basis.
Am I correct?
Thank you!
This bothers me for quite a while. Is the basis for the MPS of a fermion chain the occupation-number-representation basis? Or it's just the direct product basis as in a spin chain?
Here's my naive understanding. Although at the start we expand the state of a fermion chain under the occupation-number basis, the Jordan-Wigner transformation of the fermionic Hamiltonian already takes care of the fermionic property so the occupation-number basis is equivalent to the direct product basis.
Am I correct?
Thank you!