TY - JOUR
KW - quantum benchmarking
KW - quantum simulation
AU - Arghavan Safavi-Naini
AU - Robert Lewis-Swan
AU - Justin Bohnet
AU - Martin Gärttner
AU - Kevin Gilmore
AU - J. Jordan
AU - J. Cohn
AU - J. Freericks
AU - Ana Maria Rey
AU - John Bollinger
AB - We use a self-assembled two-dimensional Coulomb crystal of ∼70 ions in the presence of an external transverse field to engineer a simulator of the Dicke Hamiltonian, an iconic model in quantum optics which features a quantum phase transition between a superradiant (ferromagnetic) and a normal (paramagnetic) phase. We experimentally implement slow quenches across the quantum critical point and benchmark the dynamics and the performance of the simulator through extensive theory-experiment comparisons which show excellent agreement. The implementation of the Dicke model in fully controllable trapped ion arrays can open a path for the generation of highly entangled states useful for enhanced metrology and the observation of scrambling and quantum chaos in a many-body system.
BT - Physical Review Letters
DA - 2018-07
DO - 10.1103/PhysRevLett.121.040503
N2 - We use a self-assembled two-dimensional Coulomb crystal of ∼70 ions in the presence of an external transverse field to engineer a simulator of the Dicke Hamiltonian, an iconic model in quantum optics which features a quantum phase transition between a superradiant (ferromagnetic) and a normal (paramagnetic) phase. We experimentally implement slow quenches across the quantum critical point and benchmark the dynamics and the performance of the simulator through extensive theory-experiment comparisons which show excellent agreement. The implementation of the Dicke model in fully controllable trapped ion arrays can open a path for the generation of highly entangled states useful for enhanced metrology and the observation of scrambling and quantum chaos in a many-body system.
PY - 2018
T2 - Physical Review Letters
TI - Verification of a Many-Ion Simulator of the Dicke Model Through Slow Quenches across a Phase Transition
UR - https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.121.040503
VL - 121
SN - 0031-9007
ER -