Ultracold fermionic atoms in a shaken optical honeycomb lattice map the interband Berry connection via polarization-dependent resonant excitations, revealing transparency lines and Dirac strings between K and K' points.
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cond-mat.quant-gas 2years
2026 2verdicts
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An experimental scheme creates a programmable dynamic 2D quasiperiodic optical lattice with phase noise suppressed by over 70 dB below 60 Hz and 350 kHz modulation bandwidth, enabling translational and phasonic control faster than recoil velocity.
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Interband Berry connection measurement in the optical honeycomb lattice
Ultracold fermionic atoms in a shaken optical honeycomb lattice map the interband Berry connection via polarization-dependent resonant excitations, revealing transparency lines and Dirac strings between K and K' points.
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Programmable Dynamic Phase Control of a Quasiperiodic Optical Lattice
An experimental scheme creates a programmable dynamic 2D quasiperiodic optical lattice with phase noise suppressed by over 70 dB below 60 Hz and 350 kHz modulation bandwidth, enabling translational and phasonic control faster than recoil velocity.