10 papers
Complete Boundary Phase Diagram of the Spin- XXZ Chain with Boundary Fields in the Anti-Ferromagnetic Gapped Regime
Parameshwar R. Pasnoori, Yicheng Tang, Junhyun Lee +3
We consider the spin XXZ chain with diagonal boundary fields and solve it exactly using Bethe ansatz in the gapped anti-ferromagnetic regime and obtain the complete p…
Interplay between Symmetry Breaking and Interactions in a Symmetry Protected Topological Phase
Parameshwar R. Pasnoori, Patrick Azaria
We solve the one dimensional massive Thirring model or equivalently the sine-Gordon model in the repulsive regime with general Dirichlet boundary conditions, which are characterize…
Emergent boundary supersymmetry in a one dimensional superconductor
Parameshwar R. Pasnoori, Patrick Azaria, Colin Rylands +1
The interplay between bulk properties and boundary conditions in one-dimensional quantum systems, gives rise to many intriguing phenomena. These include the emergence of zero energ…
Integrability of the Kondo model with time dependent interaction strength
Parameshwar R. Pasnoori
In this letter we consider the time dependent Kondo model where a magnetic impurity interacts with the electrons through a time dependent interaction strength . We develop a…
Duality symmetry, zero energy modes and boundary spectrum of the sine-Gordon/massive Thirring model
Parameshwar R. Pasnoori, Ari Mizel, Patrick Azaria
We solve the one-dimensional massive Thirring model, which is equivalent to the one-dimensional sine-Gordon model, with two types of Dirchlet boundary conditions: open boundary con…
Realizing a Symmetry Protected Topological Phase in a Superconducting Circuit
Parameshwar R. Pasnoori, Patrick Azaria, Ari Mizel
We propose a superconducting quantum circuit whose low-energy degrees of freedom are described by the sine-Gordon (SG) quantum field theory. For suitably chosen parameters, the cir…