Exact quantum scars in the chiral nonlinear Luttinger liquid
Frank Schindler, Nicolas Regnault, B. Andrei Bernevig
Abstract
While the chiral linear Luttinger liquid is integrable via bosonization, its nonlinear counterpart does not admit of an analytic solution. Nonetheless, the authors find a number of exact eigenstates for a large family of density-density interaction terms. These quantum many-body scar states are embedded in a continuum of strongly correlated excited states. They exhibit identically zero momentum-space entanglement. Among other properties, this sets them apart from many previous examples of quantum many-body scars.
Topics & Concepts
BosonizationLuttinger liquidPhysicsQuantumQuantum mechanicsIntegrable systemNonlinear systemEigenvalues and eigenvectorsQuantum entanglementMathematical physicsFermionQuantum many-body systemsCold Atom Physics and Bose-Einstein CondensatesAlgebraic structures and combinatorial models