Sensitivity to New Physics of Isotope Shift Studies using the Coronal Lines of Highly Charged Calcium Ions

Abstract

Promising searches for new physics beyond the current Standard Model (SM) of particle physics are feasible through isotope-shift spectroscopy, which is sensitive to a hypothetical fifth force between the neutrons of the nucleus and the electrons of the shell. Such an interaction would be mediated by a new particle which could in principle be associated with dark matter. In so-called King plots, the mass-scaled frequency shifts of two optical transitions are plotted against each other for a series of isotopes. Subtle deviations from the expected linearity could reveal such a fifth force. Here, we study experimentally and theoretically six transitions in highly charged ions of Ca, an element with five stable isotopes of zero nuclear spin. Some of the transitions are suitable for upcoming high-precision coherent laser spectroscopy and optical clocks. Our results provide a sufficient number of clock transitions for -- in combination with those of singly charged Ca${}^{+}$ -- application of the generalized King plot method. This will allow future high-precision measurements to remove higher-order SM-related nonlinearities and open a new door to yet more sensitive searches for unknown forces and particles.

arXiv comment8 pages, 4 figures

References in corpus (48)

• Search for New Physics with Atoms and Molecules
• New Developments in the Casimir Effect
• Hunting for topological dark matter with atomic clocks
• Frequency ratio of two optical clock transitions in ${}^{171}$Yb${}^{+}$ and constraints on the time-variation of fundamental constants
• Searching for dilaton dark matter with atomic clocks
• Highly charged ions: optical clocks and applications in fundamental physics
• Can dark matter induce cosmological evolution of the fundamental constants of Nature?
• Searching for dark matter and variation of fundamental constants with laser and maser interferometry
• Precision Metrology Meets Cosmology: Improved Constraints on Ultralight Dark Matter from Atom-Cavity Frequency Comparisons
• Improved limits for violations of local position invariance from atomic clock comparisons
• Enhanced laboratory sensitivity to variation of the fine-structure constant using highly-charged ions
• Probing new light force-mediators by isotope shift spectroscopy
• Neutron scattering and extra short range interactions
• First observation with global network of optical atomic clocks aimed for a dark matter detection
• Coherent laser spectroscopy of highly charged ions using quantum logic
• Highly-charged ions as a basis of optical atomic clockwork of exceptional accuracy
• Evidence for Nonlinear Isotope Shift in Yb${}^{+}$ Search for New Boson
• Laser frequency stabilization to a single ion
• Hole transitions in multiply-charged ions for precision laser spectroscopy and searching for alpha-variation
• A Michelson-Morley Test of Lorentz Symmetry for Electrons
• Isotope shift, non-linearity of King plots and the search for new particles
• Constraining New Physics Models with Isotope Shift Spectroscopy
• Precision isotope shift measurements in Ca${}^{+}$ using highly sensitive detection schemes
• Highly charged ions with E1, M1, and E2 transitions within laser range
• Improved isotope-shift-based bounds on bosons beyond the Standard Model through measurements of the ${}^2$D${}_{3/2}{-}^2$D${}_{5/2}$ interval in Ca${}^{+}$
• Quantum Forces from Dark Matter and Where to Find Them
• Constraints on new interactions from neutron scattering experiments
• Precision measurement of atomic isotope shifts using a two-isotope entangled state
• Generalized King linearity and new physics searches with isotope shifts
• Detection of the $5p-4f$ orbital crossing and its optical clock transition in Pr${}^{9+}$
• Analysis of the fine structure of Sn${}^{11+...14+}$ ions by optical spectroscopy in an electron beam ion trap
• Beyond the charge radius: the information content of the fourth radial moment
• Optical frequency ratio of a ${}^{171}{\mathrm{Yb}}^{+}$ single-ion clock and a ${}^{87}\mathrm{Sr}$ lattice clock
• Isotope-shift spectroscopy of the ${}^1{S}_0\to {}^3{P}_1$ and ${}^1{S}_0\to {}^3{P}_0$ transitions in strontium
• Isotope shifts of the 4s2 1S0 -> 4s5p 1P1 transition and hyperfine splitting of the 4s5p 1P1 state in calcium
• Probing new intra-atomic force with isotope shifts
• Optical clocks based on the Cf${}^{15+}$ and Cf${}^{17+}$ ions
• Part-per-billion measurement of the $4^2{S}_{1/2}\to 3^2{D}_{5/2}$ electric quadrupole transition isotope shifts between ${}^{42,44,48}$Ca${}^{+}$ and ${}^{40}$Ca${}^{+}$
• Atomic properties of Cd-like and Sn-like ions for the development of frequency standards and search for the variation of the fine-structure constant
• Measurement of the hyperfine structure of the S1/2-D5/2 transition in 43Ca+
• Accurate prediction of clock transitions in a highly charged ion with complex electronic structure
• Unexpectedly large difference of the electron density at the nucleus in the 4p ${}^2$P${}_{1/2,3/2}$ fine-structure doublet of Ca${}^{+}$
• Non-linear isotope-shift effects in Be-like, B-like, and C-like argon
• Algorithmic Ground-state Cooling of Weakly-Coupled Oscillators using Quantum Logic
• Highly charged ions for atomic clocks and search for variation of the fine structure constant
• Search for variation of fundamental constants and violations of fundamental symmetries using isotope comparisons
• Visible transitions in Ag-like and Cd-like lanthanide ions
• Relativistic effects in search for new intra-atomic force with isotope shifts

Cited by in corpus (12)

• An Optical Atomic Clock Based on a Highly Charged Ion
• Precision determination of isotope shifts in ytterbium and implications for new physics
• Spin-dependent exotic interactions
• Model-QED-operator approach to relativistic calculations of the nuclear recoil effect in many-electron atoms and ions
• Excited-state magnetic properties of carbon-like ${\text{Ca}}^{14+}$
• Isotope-shift analysis with the $4f^{14}6s^2{}^1{S}_0-4f^{13}5d6s^2(J=2)$ transition in ytterbium
• Intercombination line frequencies in ${}^{171}$Yb validated with the clock transition
• Cold highly charged ions in a radio-frequency trap with superconducting magnetic shielding
• Oscillating nuclear charge radii as sensors for ultralight dark matter
• Radiative and photon-exchange corrections to New Physics contributions to energy levels in few-electron ions
• Quantum Sensing Using Atomic Clocks for Nuclear and Particle Physics
• The dual King relation