Preparation and detection of magnetic quantum phases in optical superlattices

Abstract

We describe a novel approach to prepare, detect and characterize magnetic quantum phases in ultra-cold spinor atoms loaded in optical superlattices. Our technique makes use of singlet-triplet spin manipulations in an array of isolated double well potentials in analogy to recently demonstrated quantum control in semiconductor quantum dots. We also discuss the many-body singlet-triplet spin dynamics arising from coherent coupling between nearest neighbor double wells and derive an effective description for such system. We use it to study the generation of complex magnetic states by adiabatic and non-equilibrium dynamics.

arXiv comment5 pages, 2 Figures, reference added

References in corpus (13)

• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Persistent entanglement in arrays of interacting particles
• Spin domains in ground state spinor Bose-Einstein condensates
• Spontaneous symmetry breaking in a quenched ferromagnetic spinor Bose condensate
• Dynamics of a Quantum Phase Transition
• Dynamics of quantum phase transition: exact solution in quantum Ising model
• Probing many-body states of ultra-cold atoms via noise correlations
• Universal adiabatic dynamics across a quantum critical point
• A lattice of double wells for manipulating pairs of cold atoms
• Universal Fault-Tolerant Computation on Decoherence-Free Subspaces
• Formation of spatial shell structures in the superfluid to Mott insulator transition
• Entropy and Correlation Functions of a Driven Quantum Spin Chain
• Sublattice addressing and spin-dependent motion of atoms in a double-well lattice

Cited by in corpus (29)

• Entanglement detection
• Quantum States and Phases in Driven Open Quantum Systems with Cold Atoms
• Time-resolved Observation and Control of Superexchange Interactions with Ultracold Atoms in Optical Lattices
• Many-Body Quantum Spin Dynamics with Monte Carlo Trajectories on a Discrete Phase Space
• Quantum Non-Demolition Detection of Strongly Correlated Systems
• Probing real-space and time resolved correlation functions with many-body Ramsey interferometry
• Exploring local quantum many-body relaxation by atoms in optical superlattices
• Topological states in two-dimensional optical lattices
• Quantum Many-Body Dynamics of Coupled Double-Well Superlattices
• State-dependent, addressable subwavelength lattices with cold atoms
• Minimum instances of topological matter in an optical plaquette
• Quantum Transport of Bosonic Cold Atoms in Double Well Optical Lattices
• Adiabatic many-body state preparation and information transfer in quantum dot arrays
• Preparation and detection of d-wave superfluidity in two-dimensional optical superlattices
• Resonantly Enhanced Tunneling and Transport of Ultracold Atoms on Tilted Optical Lattices
• Creation of resilient entangled states and a resource for measurement-based quantum computation with optical superlattices
• Entanglement Enhanced Information Transfer through Strongly Correlated Systems and its Application to Optical Lattices
• Loschmidt echo in the Bose-Hubbard model: turning back time in an optical lattice
• Mean-Field Analysis of Spinor Bosons in Optical Superlattices
• Frustrated collisions and unconventional pairing on a quantum superlattice
• Dynamics of finite Fermi-Hubbard and Bose-Hubbard systems
• Quantum spin mixing in a binary mixture of spin-1 atomic condensates
• Generating coherent state of entangled spins
• Quench Induced Growth of Distant Entanglement from Product and Locally Entangled States in Spin Chains
• Long-distance Entanglement generation by Local Rotational Protocols in spin chains
• Spin correlations and entanglement in partially magnetised ensembles of fermions
• Preparation of two-particle total hyperfine spin singlet states via spin-changing dynamics
• Testing of spin ordering Hamiltonian with ultracold atoms in optical lattices
• Ultracold atoms in superlattices as quantum simulators for a spin ordering model and phenomena