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Author

Pradip Kattel

University of Geneva

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Preprint Oct 2026

Time-dependent integrable quantum field theories with dynamical boundaries

We present a general method to construct and solve time-dependent integrable chiral quantum field theories on finite intervals from autonomous scattering and reflection data. Spatial homogeneity forces the spectral labels of right- and left-moving particles to be affine with a common slope, so bulk and boundary couplin...

Pradip Kattel · 0 citations
Preprint Aug 2026

General Construction of Time-Dependent Integrable Chiral Field Theories

We develop a general procedure for constructing time-dependent integrable chiral field theories from autonomous unitary difference-form $S$-matrices satisfying the Yang-Baxter equation. Spectral parameters are transported along the free right- and left-moving characteristics, defining a map from physical spacetime to s...

Pradip Kattel · 2 citations
Preprint Sep 2026

Integrable Chiral Quantum Field Theories with Spacetime-Dependent Interactions

We construct a class of integrable chiral fermionic quantum field theories with interactions that depend on both space and time. The construction starts from a unitary, regular, difference-form two-body scattering matrix satisfying braiding unitarity and the Yang--Baxter equation. Each freely moving right- or left-movi...

Pradip Kattel · 1 citation

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