Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.127201
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Funding
- Deutsche Forschungsgemeinschaft (DFG) [P1-0044, J1-5439]
- Slovenian Research Agency (ARRS) [N1-0025]
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We report a two-parametric irreducible infinitely dimensional representation of the Lax integrability condition for the Fermi Hubbard chain. In addition to being of fundamental interest, hinting at possible novel quantum symmetry of the model, our construction allows for an explicit representation of an exact steady state many-body density operator for a nonequilibrium boundary-driven Hubbard chain with arbitrary (asymmetric) particle source (sink) rates at the left (right) end of the chain and with arbitrary boundary values of chemical potentials.
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