Quantum lattice gas algorithm for quantum turbulence and vortex reconnection in the Gross-Pitaevskii equation
George Vahala, Jeffrey Yepez, Linda L. Vahala
The ground state wave function for a Bose Einstein condensate is well described by the Gross-Pitaevskii equation. A Type-II quantum algorithm is devised that is ideally parallelized even on a classical computer. Only 2 qubits are required per spatial node. With unitary local collisions, streaming of entangled states and a spatially inhomogeneous unitary gauge rotation one recovers the Gross-Pitaevskii equation. Quantum vortex reconnection is simulated - even without any viscosity or resistivity (which are needed in classical vortex reconnection).
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Mar 5, 2008•3 citations