Spin squeezing in mixed-dimensional anisotropic lattice models

• URL: http://arxiv.org/abs/2306.05313v1
• Date: Thu, 8 Jun 2023 16:01:00 GMT
• Title: Spin squeezing in mixed-dimensional anisotropic lattice models
• Authors: Mikhail Mamaev, Diego Barberena, Ana Maria Rey
• Abstract summary: We describe a theoretical scheme for generating scalable spin squeezing with nearest-neighbour interactions between spin-1/2 particles in a 3D lattice. We show there is a wide range of parameters in this setting where the spin squeezing improves with increasing system size even in the presence of holes.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We describe a theoretical scheme for generating scalable spin squeezing with nearest-neighbour interactions between spin-1/2 particles in a 3D lattice, which are naturally present in state-of-the-art 3D optical lattice clocks. We propose to use strong isotropic Heisenberg interactions within individual planes of the lattice, forcing the constituent spin-1/2s to behave as large collective spins. These large spins are then coupled with XXZ anisotropic interactions along a third direction of the lattice. This system can be realized via superexchange interactions in a 3D optical lattice subject to an external linear potential, such as gravity, and in the presence of spin-orbit coupling (SOC) to generate spin anisotropic interactions. We show there is a wide range of parameters in this setting where the spin squeezing improves with increasing system size even in the presence of holes.

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