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Precision Measurement of Atomic Isotope Shifts Using a Two-Isotope Entangled State.

Tom Manovitz1, Ravid Shaniv1, Yotam Shapira1

  • 1Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.

Physical Review Letters
|December 7, 2019
PubMed
Summary
This summary is machine-generated.

We developed a new method to measure atomic isotope shifts (ISs) with high precision. This technique precisely measured the IS for strontium ions, enabling new searches for physics beyond the standard model.

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Area of Science:

  • Atomic physics
  • Quantum mechanics
  • Nuclear physics

Background:

  • Atomic isotope shifts (ISs) are crucial for understanding atomic and nuclear physics.
  • ISs offer potential as sensitive probes for physics beyond the standard model.
  • High-precision measurements are needed to realize this potential.

Purpose of the Study:

  • To present a simple and robust method for measuring atomic isotope shifts.
  • To achieve unprecedented precision in IS measurements.
  • To explore new avenues for fundamental physics research.

Main Methods:

  • Utilizing Hilbert subspaces insensitive to common-mode noise.
  • Developing a robust technique for measuring ISs.
  • Applying the method to the 5S_{1/2}↔4D_{5/2} transition in strontium ions (Sr+).

Main Results:

  • Measured the IS of the 5S_{1/2}↔4D_{5/2} transition between ^{86}Sr^{+} and ^{88}Sr^{+} with a relative uncertainty of 1.6×10^{-11}.
  • Determined the IS to be 570,264,063.435(5)(8) Hz.
  • Detected a relative difference in orbital g factors between isotopes of 3.46(23)×10^{-8}.

Conclusions:

  • The developed method is simple, robust, and element/isotope-indifferent.
  • This technique opens possibilities for tabletop searches for new physics.
  • The results provide valuable data for testing quantum many-body calculations and nuclear structure studies.