Traversable wormhole in coupled Sachdev-Ye-Kitaev models with imbalanced interactions

A pair of identical Sachdev-Ye-Kitaev (SYK) models with bilinear coupling forms a quantum dual traversable wormhole, ground state close to the so called thermofield double state. We use adiabaticity arguments and numerical simulations show that character remains unchanged when interaction strengths in two SYK become imbalanced. Analysis thermodynamic dynamical quantities highlights key signatures wormhole phase imbalanced case. Further adiabatic evolution naturally leads ``maximally imbalanced'' limit where fermions single model are each coupled free Majorana zero mode. This is interesting because it could be more easily realized using various setups proposed implement laboratory. find, based on studies mechanical model, this limiting case marginal retains some characteristic physics, such as spectral gap revival dynamics, but lacks others likely does not represent full-fledged dual. discuss how scenario implemented realization physics wires finite length disordered dot.