Trapping electrons in a room-temperature microwave Paul trap

• URL: http://arxiv.org/abs/2005.06681v2
• Date: Sat, 30 Jan 2021 15:08:31 GMT
• Title: Trapping electrons in a room-temperature microwave Paul trap
• Authors: Clemens Matthiesen, Qian Yu, Jinen Guo, Alberto M. Alonso, Hartmut H\"affner
• Abstract summary: Cold electrons are introduced into the trap by ionization of atomic calcium via Rydberg states. A fraction of these electrons remain trapped longer and show no measurable loss for measurement times up to a second. operating a similar electron Paul trap in a cryogenic environment may provide a platform for all-electric quantum computing with trapped electron spin qubits.
• Score: 7.6483834331380205
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We demonstrate trapping of electrons in a millimeter-sized quadrupole Paul trap driven at 1.6~GHz in a room-temperature ultra-high vacuum setup. Cold electrons are introduced into the trap by ionization of atomic calcium via Rydberg states and stay confined by microwave and static electric fields for several tens of milliseconds. A fraction of these electrons remain trapped longer and show no measurable loss for measurement times up to a second. Electronic excitation of the motion reveals secular frequencies which can be tuned over a range of several tens to hundreds of MHz. Operating a similar electron Paul trap in a cryogenic environment may provide a platform for all-electric quantum computing with trapped electron spin qubits.

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