Trapping Electrons in a Room-Temperature Microwave Paul Trap

Matthiesen, Clemens; Yu, Qian; Guo, Jinen; Alonso, A.; Häffner, Hartmut

doi:10.1103/physrevx.11.011019

Cited by 31 publications

(24 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In view of this, the stable, spin-dependent BF observable in the present set-up is one-of-its-kind and experimentally very promising. It entails striking consequences, e.g., in arrival-time or time-of-flight experiments [27,28] amenable to present-day Paul trap technology [29][30][31][32]. (The importance of BF in arrival-time experiments has long been emphasized [33][34][35][36].)…”

Section: Dirac's Wave Equationmentioning

confidence: 99%

See 1 more Smart Citation

Relativistic electron wave packets featuring persistent quantum backflow

Das¹

2021

Preprint

View full text Add to dashboard Cite

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. These relativistic wave packets induce quantum backflow on a cross-section of the cylinder at practically any distance along the waveguide, becoming spin-polarized in the nonrelativistic limit. The predicted backflow is stable in time and is manifest regardless of the initial wave function.

show abstract

Section: Dirac's Wave Equationmentioning

confidence: 99%

“…(29-31) with z 0 < τ 0 , then letting z 0 → iz 0 in Eqs. (30)(31)(32) and multiplying the results by − i yields the corresponding I. For that matter, sin(kz 0 ) substituted for any antisymmetric periodic function in these examples can also be handled via the Fourier sine-series.…”

Section: Waveguide Modelmentioning

confidence: 99%

Relativistic electron wave packets featuring persistent quantum backflow

Das¹

2021

Preprint

View full text Add to dashboard Cite

show abstract

“…[25][26][27]. The first step towards this goal has been taken by trapping and detecting electrons in a room-temperature Paul trap [28]. Similar efforts are under way in the Noguchi group at University of Tokyo.…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of quantum computing using trapped electrons

Yu,

Alonso,

Caminiti

et al. 2021

Preprint

Self Cite

View full text Add to dashboard Cite

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 through a concrete design proposal, including trapping, cooling, electronic detection, spin readout and single and multiqubit gate operations. Numeric simulations indicate that two-qubit Bell-state fidelities of order 99.99% can be achieved assuming reasonable experimental parameters.

show abstract

“…Gray hashed areas are the board cross sections, and yellow lines represent metal electrodes. Credit: C. Matthiesen et al [1]…”

mentioning

confidence: 99%

“…potentially serve as a new, more efficient type of qubit [1]. The researchers trapped electrons for a record time of 1 s. They say their results imply that electron qubits could be used to make faster quantum computers.…”

mentioning

confidence: 99%

New Electron Trap Might Help Quantum Computers

Ball¹

2021

Physics

View full text Add to dashboard Cite

Long-time trapping of a single electron could allow the particle to be used as an efficient quantum bit. By Philip BallQ uantum computers use quantum bits (qubits) that, in addition to encoding the states 1 and 0, can be placed in combinations of the two. Several types of qubits are currently used, and now a research team has demonstrated that single electrons can be trapped effectively enough toThe eye of the trap. Theory predicts the potential energy surface for a slice through the three layers of circuit boards that make up the trap, showing a deep valley (central blue region, about a millimeter wide) to hold the electron. Gray hashed areas are the board cross sections, and yellow lines represent metal electrodes. Credit: C. Matthiesen et al. [1]

show abstract

Trapping Electrons in a Room-Temperature Microwave Paul Trap

Cited by 31 publications

References 50 publications

Relativistic electron wave packets featuring persistent quantum backflow

Relativistic electron wave packets featuring persistent quantum backflow

Feasibility study of quantum computing using trapped electrons

New Electron Trap Might Help Quantum Computers

Contact Info

Product

Resources

About