19 citations · 92 across the 24 of their papers we have counts for
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Time-dependent integrable quantum field theories with dynamical boundaries
Pradip Kattel
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. Spati…
Integrable Chiral Quantum Field Theories with Spacetime-Dependent Interactions
Pradip Kattel
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, di…
General Construction of Time-Dependent Integrable Chiral Field Theories
Pradip Kattel
We develop a general procedure for constructing time-dependent integrable chiral field theories from autonomous unitary difference-form -matrices satisfying the Yang-Baxter equa…
Breakdown of Monotonic Impurity Entropy Flow in -Symmetric Multichannel Kondo Systems
Pradip Kattel, Abay Zhakenov, Natan Andrei
We study a -symmetric non-Hermitian multichannel Kondo model consisting of a pair of spin- impurities coupled to conduction-electron channels through com…
Boundary phases and thermodynamics of the Kondo spin- chain: from overscreened Kondo to boundary-bound states
Abay Zhakenov, Pradip Kattel, Andreas Gleis +1
We study a spin- impurity coupled to the boundary of a strongly correlated spin- Takhtajan--Babujian chain, an integrable model whose low-energy physics is described by…
Exact Dynamics of Topological Order Across a CDW--SPT Transition
Pradip Kattel, Yicheng Tang, Natan Andrei
We investigate the nonequilibrium dynamics of a one-dimensional interacting system across a transition from a charge-density-wave (CDW) phase to a symmetry-protected topological (S…
Isospectrality and Operator Complexity
Pradip Kattel, Yicheng Tang, Natan Andrei
We study a pair of exactly solvable, isospectral fermion chains, one strongly interacting and one quadratic, that nevertheless display remarkably different phase structures and ope…
Monotonic and non-Nonmonotonic Impurity Entropy flows in a -Symmetric Kondo Model
Pradip Kattel, Abay Zhakenov, Natan Andrei
Quantum impurity models provide a paradigmatic setting for studying Kondo screening, boundary criticality, and impurity entropy. While these phenomena are well understood in unitar…
A mean-field description of strong-to-weak symmetry breaking in the monitored Bose-Hubbard model
Yicheng Tang, Pradip Kattel, J. H. Pixley
Strong-to-weak spontaneous symmetry breaking has emerged as a novel form of ordering in monitored and open quantum systems, yet its characterization has so far primarily relied on…