104 citations · 536 across the 35 of their papers we have counts for
5 papers · 1 filter
QQ-system and Weyl-type transfer matrices in integrable SO(2r) spin chains
Gwenaël Ferrando, Rouven Frassek, Vladimir Kazakov
We propose the full system of Baxter Q-functions (QQ-system) for the integrable spin chains with the symmetry of the Lie algebra. We use this QQ-system to derive new Weyl-typ…
Duality in quantum transport models
Rouven Frassek, Cristian Giardinà, Jorge Kurchan
We develop the `duality approach', that has been extensively studied for classical models of transport, for quantum systems in contact with a thermal `Lindbladian' bath. The method…
Duality and hidden equilibrium in transport models
Rouven Frassek, Cristian Giardina, Jorge Kurchan
A large family of diffusive models of transport that has been considered in the past years admits a transformation into the same model in contact with an equilibrium bath. This map…
Oscillator realisations associated to the D-type Yangian: Towards the operatorial Q-system of orthogonal spin chains
Rouven Frassek
We present a family of novel Lax operators corresponding to representations of the RTT-realisation of the Yangian associated with -type Lie algebras. These Lax operators are of…
Lax matrices from antidominantly shifted Yangians and quantum affine algebras: A-type
Rouven Frassek, Vasily Pestun, Alexander Tsymbaliuk
We construct a family of rational and trigonometric Lax matrices parametrized by -valued divisors on . To this end, we study the shifted Drin…