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PreprintCC BY 4.0arXiv

Universal Counterdiabatic Quantum Sensing

  • Stewart Morawetz
  • Anatoli Polkovnikov
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Abstract

One of the primary applications of quantum mechanics is leveraging coherence to make incredibly sensitive measurements. One way to push the boundary of this sensitivity even further is to initially prepare a system in an entangled state, though the fragility of these states limits their usefulness. In this work, we propose a new approach by which sensitivity comes during the preparation of an entangled state, rather than first preparing the state and then using it for sensing. An adiabatic state preparation process is then accelerated by universal counterdiabatic driving, which is more robust to uncertainty in microscopic parameters than standard shortcuts to adiabaticity. Using a toy Lipkin-Meshkov-Glick model, we show that this approach can also lead to sensitivity beyond the Standard Quantum Limit.

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Cite

BibTeXRIS
BibTeX
@misc{morawetz2026universal,
  title = {{Universal Counterdiabatic Quantum Sensing}},
  author = {Stewart Morawetz and Anatoli Polkovnikov},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.28631},
  eprint = {2609.28631},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.28631},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Universal Counterdiabatic Quantum Sensing
AU  - Stewart Morawetz
AU  - Anatoli Polkovnikov
PY  - 2026
DA  - 2026/09/23
PB  - arXiv
DO  - 10.48550/arxiv.2609.28631
UR  - https://arxiv.org/abs/2609.28631
AB  - One of the primary applications of quantum mechanics is leveraging coherence to make incredibly sensitive measurements. One way to push the boundary of this sensitivity even further is to initially prepare a system in an entangled state, though the fragility of these states limits their usefulness. In this work, we propose a new approach by which sensitivity comes during the preparation of an entangled state, rather than first preparing the state and then using it for sensing. An adiabatic state preparation process is then accelerated by universal counterdiabatic driving, which is more robust to uncertainty in microscopic parameters than standard shortcuts to adiabaticity. Using a toy Lipkin-Meshkov-Glick model, we show that this approach can also lead to sensitivity beyond the Standard Quantum Limit.
ER  -