One-and two-qubit gate infidelities due to motional errors in trapped ions and electrons

RT Sutherland, Q Yu, KM Beck, H Häffner - Physical Review A, 2022 - APS
In this work, we derive analytic formulas that determine the effect of error mechanisms on
one-and two-qubit gates in trapped ions and electrons. First, we analyze and derive …

Coupling a single electron on superfluid helium to a superconducting resonator

G Koolstra, G Yang, DI Schuster - Nature communications, 2019 - nature.com
Electrons on helium form a unique two-dimensional system on the interface of liquid helium
and vacuum. A small number of trapped electrons on helium exhibits strong interactions in …

Trapping electrons in a room-temperature microwave paul trap

C Matthiesen, Q Yu, J Guo, AM Alonso, H Häffner - Physical Review X, 2021 - APS
We demonstrate trapping of electrons in a millimeter-sized quadrupole Paul trap driven at
1.6 GHz in a room-temperature ultrahigh vacuum setup. Cold electrons are introduced into …

Feasibility study of quantum computing using trapped electrons

Q Yu, AM Alonso, J Caminiti, KM Beck, RT Sutherland… - Physical Review A, 2022 - APS
We investigate the feasibility of using electrons in a linear Paul trap as qubits in a future
quantum computer. We discuss the necessary experimental steps to realize such a device …

Hybrid quantum systems with trapped charged particles

S Kotler, RW Simmonds, D Leibfried, DJ Wineland - Physical Review A, 2017 - APS
Trapped charged particles have been at the forefront of quantum information processing
(QIP) for a few decades now, with deterministic two-qubit logic gates reaching record …

Feasibility study on ground-state cooling and single-phonon readout of trapped electrons using hybrid quantum systems

A Osada, K Taniguchi, M Shigefuji, A Noguchi - Physical Review Research, 2022 - APS
Qubits of long coherence time and fast quantum operations are long-sought objectives
toward the realization of high-fidelity quantum operations and their applications to quantum …

Relativistic effects on entangled single-electron traps

M Toroš, P Andriolo, M Schut, S Bose, A Mazumdar - Physical Review D, 2024 - APS
The manipulation of individual charged particles has been deeply explored in physics's
theoretical and experimental domains during the past decades. It is the pillar of several …

Shortcuts to adiabaticity for fast qubit readout in circuit quantum electrodynamics

FA Cárdenas-López, X Chen - Physical Review Applied, 2022 - APS
We propose how to engineer longitudinal coupling to accelerate the measurement of a qubit
longitudinally coupled to a cavity, motivated by the concept of shortcuts to adiabaticity …

Engineering artificial atomic systems of giant electric dipole moment

B Yu, Y Chu, R Betzholz, S Zhang, J Cai - Physical Review Letters, 2024 - APS
The electric dipole moment (EDM) plays a crucial role in determining the interaction strength
of an atom with electric fields, making it paramount to quantum technologies based on …

Relativistic electron wave packets featuring persistent quantum backflow

S Das - arXiv preprint arXiv:2112.13180, 2021 - arxiv.org
Closed-form, normalizable solutions of Dirac's equation propagating within a semi-infinite
cylindrical waveguide are obtained in terms of ordinary and modified Bessel functions …