Ferromagnetic transition in a chiral spin chain

Posted by klaurent This Week: Theoretical Physics, UCSB

Kavli Affiliate: Leon Balents | Summary:We study the zero-temperature properties of a spin-$1/2$ Heisenberg chain with an additional three-site chiral term of strength $g$. The model is known to be integrable and previous work using Bethe ansatz has identified a phase transition from the usual critical state for $g< g_c = 2/π$ to a chiral […]


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Programmable Spin Conversion in Gradient Quantum Matter

Posted by klaurent This Week: Theoretical Physics, UCAS

Kavli Affiliate: Mamoru Matsuo | Summary:We propose programmable spin conversion in ultracold gases as gradient quantum matter, whose spin-dependent self-energy varies in space. Quantum kinetic theory shows that a dissipative self-energy curvature turns a force-driven scalar anisotropy into a spin source with mixed longitudinal-transverse momentum parity. Spin-resolved time-of-flight imaging can reveal a transverse spin texture […]


Continue.. Programmable Spin Conversion in Gradient Quantum Matter