TY - JOUR
AU - Yan Zhou
AU - Yuval Shagam
AU - William Cairncross
AU - Kia Ng
AU - Tanya Roussy
AU - Tanner Grogan
AU - Kevin Boyce
AU - Antonio Vigil
AU - Madeline Pettine
AU - Tanya Zelevinsky
AU - Jun Ye
AU - Eric Cornell
AB - Cold molecules provide an excellent platform for quantum information, cold chemistry, and precision measurement. Certain molecules have enhanced sensitivity to beyond standard model physics, such as the electron’s electric dipole moment (eEDM). Molecular ions are easily trappable and are therefore particularly attractive for precision measurements where sensitivity scales with interrogation time. Here, we demonstrate a spin precession measurement with second-scale coherence at the quantum projection noise (QPN) limit with hundreds of trapped molecular ions, chosen for their sensitivity to the eEDM rather than their amenability to state control and readout. Orientation-resolved resonant photodissociation allows us to simultaneously measure two quantum states with opposite eEDM sensitivity, reaching the QPN limit and fully exploiting the high count rate and long coherence.
BT - Phys. Rev. Lett.
DA - 2020-02
DO - 10.1103/PhysRevLett.124.053201
N2 - Cold molecules provide an excellent platform for quantum information, cold chemistry, and precision measurement. Certain molecules have enhanced sensitivity to beyond standard model physics, such as the electron’s electric dipole moment (eEDM). Molecular ions are easily trappable and are therefore particularly attractive for precision measurements where sensitivity scales with interrogation time. Here, we demonstrate a spin precession measurement with second-scale coherence at the quantum projection noise (QPN) limit with hundreds of trapped molecular ions, chosen for their sensitivity to the eEDM rather than their amenability to state control and readout. Orientation-resolved resonant photodissociation allows us to simultaneously measure two quantum states with opposite eEDM sensitivity, reaching the QPN limit and fully exploiting the high count rate and long coherence.
PB - American Physical Society
PY - 2020
SE - 053201
EP - 053201
T2 - Phys. Rev. Lett.
TI - Second-Scale Coherence Measured at the Quantum Projection Noise Limit with Hundreds of Molecular Ions
UR - https://link.aps.org/doi/10.1103/PhysRevLett.124.053201
VL - 124
ER -