David Schwerdt

ORCID: 0000-0003-4151-7930
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About
Contact & Profiles
Research Areas
  • Quantum Information and Cryptography
  • Quantum Computing Algorithms and Architecture
  • Quantum Mechanics and Applications
  • Quantum-Dot Cellular Automata
  • Cold Atom Physics and Bose-Einstein Condensates
  • Quantum optics and atomic interactions
  • Neural Networks and Reservoir Computing

Weizmann Institute of Science
2022-2024

Qubits based on ions trapped in linear radio-frequency traps form a successful platform for quantum computing, due to their high fidelity of operations, all-to-all connectivity, and degree local control. In principle, there is no fundamental limit the number ion-based qubits that can be confined single 1D register. However, practice, are two main issues associated with long trapped-ion crystals, stem from “softening” modes motion, upon scaling up: heating rates ions’ motion dense motional...

10.1103/physrevx.14.041017 article EN cc-by Physical Review X 2024-10-21

In some quantum computing architectures, entanglement of an arbitrary number qubits can be generated in a single operation. This property has many potential applications, and may specifically useful for error correction (QEC). Stabilizer measurements then implemented using multiqubit gate instead several two-qubit gates, thus reducing circuit depth. this study, the toric code is used as benchmark to compare performance five-qubit gates within parity-check circuits. We consider trapped ion...

10.1103/physreva.105.022612 article EN Physical review. A/Physical review, A 2022-02-17

Quantum computers based on crystals of electrically trapped ions are a prominent technology for quantum computation. A unique feature is their long-range Coulomb interactions, which come about as an ability to naturally realize large-scale multi-qubit entanglement gates. However, scaling up the number qubits in these systems, while retaining high-fidelity and high-speed operations challenging. Specifically, designing gates long ion 100s involves NP-hard optimization problem, rendering...

10.48550/arxiv.2307.09566 preprint EN cc-by arXiv (Cornell University) 2023-01-01

Qubits based on ions trapped in linear radio-frequency traps form a successful platform for quantum computing, due to their high fidelity of operations, all-to-all connectivity and degree local control. In principle there is no fundamental limit the number ion-based qubits that can be confined single 1D register. However, practice are two main issues associated with long trapped-ion crystals, stem from 'softening' modes motion, upon scaling up: heating rates ions' dense motional spectrum;...

10.48550/arxiv.2311.01168 preprint EN cc-by arXiv (Cornell University) 2023-01-01

In some quantum computing (QC) architectures, entanglement of an arbitrary number qubits can be generated in a single operation.This property has many potential applications, and may specifically useful for error correction (QEC).Stabilizer measurements then implemented using multi-qubit gate instead several two-qubit gates, thus reducing circuit depth.In this study, the toric code is used as benchmark to compare performance twoqubit five-qubit gates within parity-check circuits.We consider...

10.26226/m.6275705d66d5dcf63a31160d preprint EN 2022-05-25
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