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Universality and Dynamic Localization in Kibble- Zurek. Michael Kolodrubetz Boston University In collaboration with: B.K. Clark, D. Huse (Princeton) A. Polkovnikov , A. Katz (BU). Kibble- Zurek Scaling. Disordered. Ordered. Kibble- Zurek scaling. Ramp rate.
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Universality and Dynamic Localization in Kibble-Zurek Michael Kolodrubetz Boston University In collaboration with: B.K. Clark, D. Huse (Princeton)A. Polkovnikov, A. Katz (BU)
Kibble-Zurek Scaling Disordered Ordered
Kibble-Zurek scaling Ramp rate Kibble-ZurekRamp through the critical point at a constant, finite rate
Kibble-Zurek scaling Ramp rate
Kibble-Zurek scaling Ramp rate
Kibble-Zurek scaling Ramp rate
Kibble-Zurek scaling Ramp rate Fall out ofequilibrium
Kibble-Zurek scaling Ramp rate Fall out ofequilibrium
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling • Recent work: Kibble-Zurek rampsshow non-equilibrium scaling • (in the limit of slow ramps) • [Chandran et. al., Deng et. al., etc.]
Kibble-Zurek scaling • Recent work: Kibble-Zurek rampsshow non-equilibrium scaling • (in the limit of slow ramps) • More predictions than just defect production! • [Chandran et. al., Deng et. al., etc.]
Kibble-Zurek scaling Excess heat
Kibble-Zurek scaling Schrödinger Equation OR Observable
Kibble-Zurek scaling Schrödinger Equation OR Observable Fixed
Kibble-Zurek scaling Schrödinger Equation OR Observable Universaldynamics! = Fixed
Transverse-field Ising chain Paramagnet (PM) Ferromagnet (FM)
Transverse-field Ising chain Paramagnet (PM) Ferromagnet (FM)
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Ramp rate Slower
Kibble-Zurek scaling Excess heat
Kibble-Zurek scaling Dynamics does not depend on ramp rate!
Outline • Part I: Universality of Kibble-Zurek scaling • Dynamics near QCP givesnon-equilibrium critical scaling theory • Part II: Kibble-Zurek with a dynamic field
Outline • Part I: Universality of Kibble-Zurek scaling • Dynamics near QCP givesnon-equilibrium critical scaling theory • Are the results universal? • Part II: Kibble-Zurek with a dynamic field
Universality Theory Sachdev et al. (2002) Experiment Greiner group (Harvard) Nagerl group (Innsbruck)
Universality Theory Sachdev et al. (2002) Experiment Greiner group (Harvard) Nagerl group (Innsbruck)
Universality or Theory Sachdev et al. (2002) Experiment Greiner group (Harvard) Nagerl group (Innsbruck)
Universality Ramp the tilt linearly in time or Theory Sachdev et al. (2002) Experiment Greiner group (Harvard) Nagerl group (Innsbruck)
Universality Ramp the tilt linearly in time: Solve numerically with DMRG or Theory Sachdev et al. (2002) Experiment Greiner group (Harvard) Nagerl group (Innsbruck)
Universality Dynamics are universal!
Outline • Part I: Universality of Kibble-Zurek scaling • Dynamics near QCP givesnon-equilibrium critical scaling theory • Dynamics are universal to Ising-like QPTs • Part II: Kibble-Zurek with a dynamic field
Outline • Part I: Universality of Kibble-Zurek scaling • Dynamics near QCP givesnon-equilibrium critical scaling theory • Dynamics are universal to Ising-like QPTs • Non-trivial scaling functions • Part II: Kibble-Zurek with a dynamic field
Non-equilibrium properties Spin-spin correlation function