Quantum-enhanced sensing of displacements and electric fields with two-dimensional trapped-ion crystals

KA Gilmore, M Affolter, RJ Lewis-Swan, D Barberena… - Science, 2021 - science.org
Fully controllable ultracold atomic systems are creating opportunities for quantum sensing,
yet demonstrating a quantum advantage in useful applications by harnessing entanglement …

[HTML][HTML] The physics and applications of strongly coupled Coulomb systems (plasmas) levitated in electrodynamic traps

BM Mihalcea, VS Filinov, RA Syrovatka, LM Vasilyak - Physics reports, 2023 - Elsevier
Charged microparticles confined in electrodynamic traps evolve into strongly coupled
Coulomb systems (SCCS) which are the subject of current investigation. Recent results with …

Nanoscale electric field sensing using a levitated nano-resonator with net charge

S Zhu, Z Fu, X Gao, C Li, Z Chen, Y Wang… - Photonics …, 2023 - opg.optica.org
The nanomechanical resonator based on a levitated particle exhibits unique advantages in
the development of ultrasensitive electric field detectors. We demonstrate a three …

Dynamical generation of spin squeezing in ultracold dipolar molecules

T Bilitewski, L De Marco, JR Li, K Matsuda… - Physical Review Letters, 2021 - APS
We study a bulk fermionic dipolar molecular gas in the quantum degenerate regime
confined in a two-dimensional geometry. Using two rotational states of the molecules, we …

Phonon-laser ultrasensitive force sensor

Z Liu, Y Wei, L Chen, J Li, S Dai, F Zhou, M Feng - Physical Review Applied, 2021 - APS
Developing nanomechanical oscillators for ultrasensitive force detection is very useful in
exploring science. We report our achievement of ultrasensitive detection of the external force …

Toward improved quantum simulations and sensing with trapped two-dimensional ion crystals via parametric amplification

M Affolter, W Ge, B Bullock, SC Burd, KA Gilmore… - Physical Review A, 2023 - APS
Improving coherence is a fundamental challenge in quantum simulation and sensing
experiments with trapped ions. Here we discuss, experimentally demonstrate, and estimate …

Current experimental upper bounds on spacetime diffusion

M Janse, DG Uitenbroek, L van Everdingen… - Physical Review …, 2024 - APS
A theory describing the dynamics of quantum systems interacting on a classical spacetime
was recently put forward by Oppenheim et al. Quantum states may retain their coherence, at …

Rapid cooling of the in-plane motion of two-dimensional ion crystals in a Penning trap to millikelvin temperatures

W Johnson, A Shankar, J Zaris, JJ Bollinger, SE Parker - Physical Review A, 2024 - APS
We propose a highly feasible technique with no experimental overhead to rapidly cool the in-
plane degrees of freedom of large two-dimensional ion crystals in Penning traps. Through …

Comparison of spontaneous emission in trapped-ion multiqubit gates at high magnetic fields

AL Carter, SR Muleady, A Shankar, JF Lilieholm… - Physical Review A, 2023 - APS
Penning traps have been used for performing quantum simulations and sensing with
hundreds of ions and provide a promising route toward scaling up trapped ion quantum …

Scalable quantum logic spectroscopy

K Cui, J Valencia, KT Boyce, ER Clements… - Physical Review Letters, 2022 - APS
In quantum logic spectroscopy (QLS), one species of trapped ion is used as a sensor to
detect the state of an otherwise inaccessible ion species. This extends precision …