Noise Electrometry of Polar and Dielectric Materials
- URL: http://arxiv.org/abs/2111.09315v1
- Date: Wed, 17 Nov 2021 19:00:00 GMT
- Title: Noise Electrometry of Polar and Dielectric Materials
- Authors: Rahul Sahay, Satcher Hsieh, Eric Parsonnet, Lane W. Martin,
Ramamoorthy Ramesh, Norman Y. Yao, Shubhayu Chatterjee
- Abstract summary: A qubit sensor with an electric dipole moment acquires an additional contribution to its depolarization rate when placed in the vicinity of a polar or dielectric material.
We describe this relaxation rate as a function of experimentally tunable parameters such as sample-probe distance, probe-frequency, and temperature.
We demonstrate that it offers a window into dielectric properties of insulating materials over a wide range of frequencies and length scales.
- Score: 0.0
- License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
- Abstract: A qubit sensor with an electric dipole moment acquires an additional
contribution to its depolarization rate when it is placed in the vicinity of a
polar or dielectric material as a consequence of electrical noise arising from
polarization fluctuations in the material. Here, we characterize this
relaxation rate as a function of experimentally tunable parameters such as
sample-probe distance, probe-frequency, and temperature, and demonstrate that
it offers a window into dielectric properties of insulating materials over a
wide range of frequencies and length scales. We discuss the experimental
feasibility of our proposal and illustrate its ability to probe a variety of
phenomena, ranging from collective polar excitations to phase transitions and
disorder-dominated physics in relaxor ferroelectrics. Our proposal paves the
way for a novel table-top probe of polar and dielectric materials in a
parameter regime complementary to existing tools and techniques.
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