Hartmut Häffner Department of Physics, University of California, Berkeley Boulder, Feb 16 th 2011 Trapped ions meet solid state physics • Introduction • Quantum emulation • Shuttling charged particles in 3D • Comments on anomalous heating • Conclusions
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Trapped ions meet solid state physics - University of California
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Hartmut Häffner
Department of Physics, University of California, Berkeley
Boulder, Feb 16th 2011
Trapped ions meet solid state physics
• Introduction
• Quantum emulation
• Shuttling charged particles in 3D
• Comments on anomalous heating
• Conclusions
Trapped ions and condensted matter
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Trapped ions Condensed matter
Emulation
Better traps
• Introduction
• Quantum emulation
• Shuttling charged particles in 3D
• Comments on anomalous heating
• Conclusions
Quantum emulation
General idea: use the motion of ions in individual micro-traps to emulate
interesting quantum physics
Questions:
- how does energy flow?
- thermal equilibrium?
- can we trap an excitation by minimal reconfiguration?
Light harvesting complexes
Study emergent phenomena
Dry friction:
Crystal I
Crystal II
Quantum emulation of dry friction
A linear trap in an optical cavity: an ion string in a periodic potential
Crystal I
Crystal II
Frenkel-Kontorova model
Features:- quantum phase transition - non-analytic breaking of KAM surfaces
Optical trapping of ions: T. Schätz, Munich
Experimental set-up
Cavity mirrors
Trap
Heat flow in ion strings
Global cooling beam Focussed heating beam
Red detunedcooling and detection
Blue detunedheating
Melting of crystal
Temperaturedistribution?
Near term plans: basic thermodynamics with ion strings / crystals