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hep-th2026
Separation of variables for non-diagonalisable models: XXX with twisted boundary conditions
Juan Miguel Nieto García
We study the Heisenberg XXX spin chain with twisted periodic boundary conditions with a defective twist matrix. Using quantum separation of variables, we show that the generalised…
hep-th2026
Quantization of Galilean Electrodynamics: a non-trivially trivial theory
Rafael Hernandez, Juan Miguel Nieto Garcia, Ander Urtiaga
We consider the quantization of the non-relativistic limit of electrodynamics called Galilean electrodynamics. To that end, we apply the Dirac bracket formalism to understand the c…