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Optical Lattice

All articles tagged with #optical lattice

physics2 years ago

"Breakthrough Achievement: Optical-Lattice Quantum Computer Reaches Major Physics Milestone"

Researchers at the University of Science and Technology of China have achieved a milestone in optical-lattice-based quantum processing by successfully entangling groups of eight and ten ultracold atoms. This breakthrough demonstrates the scalability and reliability of using ultracold atoms trapped in an optical lattice for quantum computations. The team also demonstrated control and imaging of the states of the atoms with single-atom resolution, a crucial requirement for quantum computers.

physics2 years ago

Ultracold atoms achieve fractional quantum Hall and Laughlin states

Researchers have realized a fractional quantum Hall state with ultracold atoms in an optical lattice, which is a lattice version of a bosonic ν = 1/2 Laughlin state with two particles on 16 sites. The state exhibits many hallmark features of Laughlin-type FQH states, including a suppression of two-body interactions, a distinctive vortex structure in the density correlations, and a fractional Hall conductivity of σH/σ0 = 0.6(2) by means of the bulk response to a magnetic perturbation. This work provides a starting point for exploring highly entangled topological matter with ultracold atoms.