Enhanced sensitivity to variation of $m_e/m_p$ in molecular spectra

Abstract

We propose new experiments with high sensitivity to a possible spatial or temporal variation of the electron-to-proton mass ratio $\mu \equiv m_e/m_p$. We consider a nearly-degenerate pair of molecular vibrational levels, where each state is associated with a different electronic potential. The change in the splitting between such levels, with respect to a change in $\mu$, can be large both on an absolute scale and relative to the splitting. We demonstrate the existence of such pairs of levels in Cs${}_2$. The narrow spectral lines achievable with ultracold Cs${}_2$ in these long-lived levels make this system promising for future searches for small variations in $\mu$.

References in corpus (14)

• The fundamental constants and their variation: observational status and theoretical motivations
• Optical Production of Ultracold Polar Molecules
• Possible evidence for a variable fine structure constant from QSO absorption lines: motivations, analysis and results
• Cold Molecule Spectroscopy for Constraining the Evolution of the Fine Structure Constant
• A Search for Variations of Fundamental Constants using Atomic Fountain Clocks
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Enhanced sensitivity to variation of the fine structure constant and m_p/m_e in diatomic molecules
• Coherent optical transfer of Feshbach molecules to a lower vibrational state
• Enhanced sensitivity to time-variation of m_p/m_e in the inversion spectrum of ammonia
• Constraints on changes in fundamental constants from a cosmologically distant OH absorber/emitter
• Sensitive Detection of Cold Cesium Molecules by Radiative Feshbach Spectroscopy
• Enhancement of variation of fundamental constants in ultracold atom and molecule systems near Feshbach resonances
• Efficient creation of molecules from a cesium Bose-Einstein condensate
• Probing variations in fundamental constants with radio and optical quasar absorption-line observations

Cited by in corpus (83)

• Search for New Physics with Atoms and Molecules
• Cold and Ultracold Molecules: Science, Technology, and Applications
• Quantum Gas of Deeply Bound Ground State Molecules
• The Buffer Gas Beam: An Intense, Cold, and Slow Source for Atoms and Molecules
• Quantum gas of rovibronic ground-state molecules in an optical lattice
• Manipulation of Molecules with Electromagnetic Fields
• Precision Test of Mass Ratio Variations with Lattice-Confined Ultracold Molecules
• Coherent transfer of photoassociated molecules into the rovibrational ground state
• Formation and interactions of cold and ultracold molecules: new challenges for interdisciplinary physics
• Enhanced effects of variation of the fundamental constants in laser interferometers and application to dark matter detection
• Second-Scale Nuclear Spin Coherence Time of Trapped Ultracold ${}^{23}$Na${}^{40}$K Molecules
• Hyperfine, rotational, and vibrational structure of the triplet ground state of Rb molecules
• Polyatomic Molecules as Quantum Sensors for Fundamental Physics
• Inelastic collisions of ultra-cold heteronuclear molecules in an optical trap
• Production of a dual-species Bose-Einstein condensate of Rb and Cs atoms
• Strongly interacting ultracold polar molecules
• Perspective: Tipping the scales - search for drifting constants from molecular spectra
• Improved limits on interactions of low-mass spin-0 dark matter from atomic clock spectroscopy
• Optical Production of Stable Ultracold ${}^{88}$Sr${}_2$ Molecules
• Coherent Microwave Control of Ultracold ${}^{23}$Na${}^{40}$K Molecules
• Searches for topological defect dark matter via non-gravitational signatures
• Enhanced Sensitivity to Ultralight Bosonic Dark Matter in the Spectra of the Linear Radical SrOH
• H2+ and HD+: candidates for a molecular clock
• Cavity QED in a molecular ion trap
• Measurement of the variation of electron-to-proton mass ratio using ultracold molecules produced from laser-cooled atoms
• Search for the effect of massive bodies on atomic spectra and constraints on Yukawa-type interactions of scalar particles
• Avoided crossings between bound states of ultracold Cesium dimers
• Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions
• Prospects for application of ultracold Sr${}_2$ molecules in precision measurements
• Global analysis of data on the spin-orbit coupled $A^1{\Sigma }_u^{+}$ and $b^3{\Pi }_u$ states of Cs2
• Dark resonances for ground state transfer of molecular quantum gases
• Prospects for Doppler cooling of three-electronic-level molecules
• Mass scaling and non-adiabatic effects in photoassociation spectroscopy of ultracold strontium atoms
• Observation of interference between resonant and detuned STIRAP in the adiabatic creation of ${}^{23}$Na${}^{40}$K molecules
• Highly polar molecules consisting of a copper or silver atom interacting with an alkali-metal or alkaline-earth-metal atom
• Quantum logic for control and manipulation of molecular ions using a frequency comb
• New bounds on macroscopic scalar-field topological defects from non-transient signatures due to environmental dependence and spatial variations of the fundamental constants
• High sensitivity to mass-ratio variation in deep molecular potentials
• Observation of vibrational overtones by single molecule resonant photodissociation
• Rotational spectrum of molecular ion NH^+ as a probe for alpha- and m_e/m_p-variation
• Single-Photon Molecular Cooling
• Optical lattice clocks with weakly bound molecules
• Phase Separation in two-Species Atomic Bose-Einstein Condensate with Interspecies Feshbach Resonance
• Feshbach-Einstein condensates
• Two-photon vibrational transitions in ${\mathrm{O}}_2^{+}$ as probes of variation of the proton-to-electron mass ratio
• Effect of alpha variation on the vibrational spectrum of Sr_2
• Rotational State Analysis of AlH+ by Two-Photon Dissociation
• Search for variation of fundamental constants: Strong enhancements in $X^2\Pi$ cations of dihalogens and hydrogen halides
• Effect of alpha variation on a prospective experiment to detect variation of m_e/m_p in diatomic molecules
• Long range interactions between like homonuclear alkali metal diatoms
• Coulomb energy contribution to the excitation energy in ${}^{229}$Th and enhanced effect of $\alpha$ variation
• Long range forces between polar alkali diatoms aligned by external electric fields
• New Atomic probes for Dark Matter detection: Axions, Axion-like particles and Topological Defects
• Hyperfine, rotational and Zeeman structure of the lowest vibrational levels of the ${}^{87}$Rb${}_2$ $\tripletex$ state
• Statistical sensitivity of phase measurements via laser-induced fluorescence with optical cycling detection
• Enhanced Sensitivity to the Time Variation of the Fine-Structure Constant and $m_p/m_e$ in Diatomic Molecules: A Closer Examination of Silicon Monobromide
• Precision molecular spectroscopy for ground state transfer of molecular quantum gases
• Measurement of the binding energy of ultracold ${}^{87}$Rb${}^{133}$Cs molecules using an offset-free optical frequency comb
• Enhanced effects of temporal variation of the fundamental constants in ^{2}Π_{1/2} term diatomic molecules: ^{207}Pb^{19}F
• Prospects for Polar Molecular Ion Optical Probe of Varying Proton-Electron Mass Ratio
• Optical Pumping of TeH+: Implications for the Search for Varying mp/me
• Polarizability of ultracold ${\text{Rb}}_2$ molecules in the rovibrational ground state of ${\mathrm{a}}^3{\Sigma }_u^{+}$
• Fourier transform spectroscopy, relativistic electronic structure calculation, and coupled-channel deperturbation analysis of the fully mixed $A^1{\Sigma }_u^{+}$ and $b^3{\Pi }_u$ states of Cs${}_2$
• Photoassociation of ultracold molecules near a Feshbach resonance as a probe of the electron-proton mass ratio variation
• Prospects of nuclear-coupled-dark-matter detection via correlation spectroscopy of I${}_2^{+}$ and Ca${}^{+}$
• Precision spectroscopy of the molecular ion HD+: control of Zeeman shifts
• Study of dipole moments of LiSr and KRb molecules by quantum Monte Carlo methods
• SeD Radical: A probe for measurement of time variation of Fine Structure Constant($\alpha$) and Proton to Electron Mass Ratio($\mu$)
• Laser spectroscopy of cold molecules
• Core repulsion effects in alkali trimers
• Variational Vibrational States of Methanol (12D)
• Deceleration of continuous molecular beams
• Axion Bounds from Quantum Technology
• Associative detachment of rubidium hydroxide
• Hyperfine structure of the ${\mathbf{A}}^1\mathbf{\Pi }$ state of AlCl and its relevance to laser cooling and trapping
• Accurate Determination of Blackbody Radiation Shifts in a Strontium Molecular Lattice Clock
• A low-cost four-component relativistic coupled cluster linear response theory based on perturbation sensitive natural spinors
• Ultracold and dense samples of ground-state molecules in lattice potentials
• Features of Molecular Structure Beneficial for Optical Pumping
• Low Duty Cycle Pulsed UV Technique for Spectroscopy of Aluminum Monochloride
• Measurement of the Electric Dipole Moment of AlCl by Stark Level Spectroscopy
• Optimizing Pulsed-Laser Ablation Production of AlCl Molecules for Laser Cooling
• Scalable platform for qudit-based quantum computing using polar molecules