Microwave guiding of electrons on a chip

Abstract

Electrons travelling in free space have allowed to explore fundamental physics like the wave nature of matter, the Aharonov-Bohm and the Hanbury Brown-Twiss effect. Complementarily, the precise control over the external degrees of freedom of electrons has proven pivotal for wholly new types of experiments such as high precision measurements of the electron's mass and magnetic moment in Penning traps. Interestingly, the confinement of electrons in the purely electric field of an alternating quadrupole has rarely been considered. Recent advances in the development of planar chip-based ion traps suggest that this technology can be applied to enable entirely new experiments with electron beams guided in versatile potentials. Here we demonstrate the transverse confinement of a low energy electron beam in a linear quadrupole guide based on microstructured planar electrodes and driven at microwave frequencies. A new guided matter-wave system will result, with applications ranging from electron interferometry to novel non-invasive electron microscopy.

References in corpus (12)

• New Measurement of the Electron Magnetic Moment and the Fine Structure Constant
• Atom chip based generation of entanglement for quantum metrology
• A Femtosecond Nanometer Free Electron Source
• A microfabricated surface-electrode ion trap for scalable quantum information processing
• Coupled quantized mechanical oscillators
• Scalable ion traps for quantum information processing
• Trapped-ion antennae for the transmission of quantum information
• Multi Mode Interferometer for Guided Matter Waves
• Temperature Dependence of Electric Field Noise Above Gold Surfaces
• Experimental investigation of planar ion traps
• Experimental and theoretical challenges for the trapped electron quantum computer
• Microfabricated Chip Traps for Ions

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• Fifteen Years of Cold Matter on the Atom Chip: Promise, Realizations, and Prospects
• Hybrid quantum systems with trapped charged particles
• A Duality in Entanglement Enabling a Test of Quantum Indistinguishability Unaffected by Interactions
• Bent waveguides for matter-waves: supersymmetric potentials and reflectionless geometries
• Trapping electrons in a room-temperature microwave Paul trap
• Quantum information processing with trapped electrons and superconducting electronics
• Investigation of two-frequency Paul traps for antihydrogen production
• Nonadiabatic couplings and gauge-theoretical structure of curved quantum waveguides
• Charged particle guiding and beam splitting with auto-ponderomotive potentials on a chip
• Spin readout of trapped electron qubits
• Phase-space study of surface-electrode Paul traps: Integrable, chaotic, and mixed motions
• Control of atomic Rydberg states using guided electrons