Search for transient variations of the fine structure constant and dark matter using fiber-linked optical atomic clocks

Published on Sep 4, 2020in New Journal of Physics3.732
· DOI :10.1088/1367-2630/ABAACE
P. Delva8
Estimated H-index: 8
,
Ali Al-Masoudi13
Estimated H-index: 13
+ 51 AuthorsPeter Wolf22
Estimated H-index: 22
Sources
Abstract
We search for transient variations of the fine structure constant using data from a European network of fiber-linked optical atomic clocks. By searching for coherent variations in the recorded clock frequency comparisons across the network, we significantly improve the constraints on transient variations of the fine structure constant. For example, we constrain the variation to |δα/α| ~10^4 km) objects.
📖 Papers frequently viewed together
201849.96Nature
12 Authors (W. F. McGrew, ..., Andrew D. Ludlow)
References56
Newest
#1Rees McNally (Columbia University)H-Index: 8
#2Tanya Zelevinsky (Columbia University)H-Index: 24
There is strong astrophysical evidence that dark matter (DM) makes up some 27% of all mass in the universe. Yet, beyond gravitational interactions, little is known about its properties or how it may connect to the Standard Model. Multiple frameworks have been proposed, and precision measurements at low energy have proven useful to help restrict the parameter space for many of these models. One set of models predicts that DM is a scalar field that “clumps” into regions of high local density, rath...
Source
#1Guglielmo Panelli (UNR: University of Nevada, Reno)H-Index: 2
#3Andrei Derevianko (UNR: University of Nevada, Reno)H-Index: 50
There are several networks of precision quantum sensors in existence, including networks of atomic clocks, magnetometers, and gravitational wave detectors. These networks can be re-purposed for searches of exotic physics, such as direct dark matter searches. Here we explore a detection strategy for macroscopic dark matter objects with such networks using the matched-filter technique. Such “clumpy” dark matter objects would register as transients sweeping through the network at galactic velocitie...
Source
#1Dmitry Budker (University of Mainz)H-Index: 75
#2Victor V. Flambaum (UNSW: University of New South Wales)H-Index: 89
Last. Ariel R. Zhitnitsky (UBC: University of British Columbia)H-Index: 34
view all 4 authors...
We advocate the idea that a global network of the synchronized axion detectors can greatly enhance the discovery potential of the QCD axions. Our computations are based on the so-called Axion Quark Nugget (AQN) dark matter model which was originally invented to explain the similarity of the dark and visible cosmological matter densities \Omega_{\rm dark}\sim \Omega_{\rm visible} In our framework the conventional population of the galactic axions will be always accompanied by the axions emitte...
Source
#1Hartmut Grote (Cardiff University)H-Index: 130
#2Yevgeny V. Stadnik (IPMU: Institute for the Physics and Mathematics of the Universe)H-Index: 24
Dark matter may induce apparent temporal variations in the physical “constants”, including the electromagnetic fine-structure constant and fermion masses. In particular, a coherently oscillating classical dark-matter field may induce apparent oscillations of physical constants in time, while the passage of macroscopic dark-matter objects (such as topological defects) may induce apparent transient variations in the physical constants. In this paper, we point out several new signatures of the afor...
Source
#1Andrew Geraci (NU: Northwestern University)H-Index: 20
#2Colin Bradley (UNR: University of Nevada, Reno)H-Index: 2
Last. Andrei Derevianko (UNR: University of Nevada, Reno)H-Index: 50
view all 5 authors...
We discuss the use of optical cavities as tools to search for dark matter (DM) composed of virialized ultra-light fields (VULFs). Such fields could lead to oscillating fundamental constants, resulting in oscillations of the length of rigid bodies. We propose searching for these effects via differential strain measurement of rigid and suspended-mirror cavities. We estimate that more than two orders of magnitude of unexplored phase space for VULF DM couplings can be probed at VULF Compton frequenc...
Source
#1Rodrigo Alonso (CERN)H-Index: 56
#2Diego BlasH-Index: 46
Last. Peter Wolf (University of Paris)H-Index: 22
view all 3 authors...
Particle dark matter could have a mass anywhere from that of ultralight candidates, m_{χ}∼ 10^{−21}eV, to scales well above the GeV. Conventional laboratory searches are sensitive to a range of masses close to the weak scale, while new techniques are required to explore candidates outside this realm. In particular lighter candidates are difficult to detect due to their small momentum. Here we study two experimental set-ups which do not require transfer of momentum to detect dark matter: at...
Source
#1Peter Wolf (University of Paris)H-Index: 22
#2Rodrigo Alonso (CERN)H-Index: 56
Last. Diego BlasH-Index: 46
view all 3 authors...
We present a detailed analysis of the effect of light Dark Matter (DM) on atomic clocks, for the case where DM mass and density are such that occupation numbers are low and DM must be considered as particles scattering off the atoms, rather than a classical field. We show that the resulting atomic clock frequency shifts are first order in the scattering amplitudes, and particularly suited to constrain DM models in the regime where the DM mass m_\chi \llGeV. We provide some rough order of magn...
Source
#1W. F. McGrew (NIST: National Institute of Standards and Technology)H-Index: 9
#2Xiaogang Zhang (NIST: National Institute of Standards and Technology)H-Index: 12
Last. Andrew D. Ludlow (NIST: National Institute of Standards and Technology)H-Index: 43
view all 16 authors...
The pursuit of ever more precise measures of time and frequency motivates redefinition of the second in terms of an optical atomic transition. To ensure continuity with the current definition, based on the microwave hyperfine transition in Cs133, it is necessary to measure the absolute frequency of candidate optical standards relative to primary cesium references. Armed with independent measurements, a stringent test of optical clocks can be made by comparing ratios of absolute frequency measure...
Source
#1Christian Sanner (JILA)H-Index: 19
#2Nils Huntemann (German National Metrology Institute)H-Index: 17
Last. Sergey G. Porsev (UD: University of Delaware)H-Index: 33
view all 7 authors...
Questioning basic assumptions about the structure of space and time has greatly enhanced our understanding of nature. State-of-the-art atomic clocks1–3 make it possible to precisely test fundamental symmetry properties of spacetime and search for physics beyond the standard model at low energies of just a few electronvolts4. Modern tests of Einstein’s theory of relativity try to measure so-far-undetected violations of Lorentz symmetry5; accurately comparing the frequencies of optical clocks is a...
Source
#1Piotr Wcisło (UMK: Nicolaus Copernicus University in Toruń)H-Index: 18
#2P. Ablewski (UMK: Nicolaus Copernicus University in Toruń)H-Index: 8
Last. Michal Zawada (UMK: Nicolaus Copernicus University in Toruń)H-Index: 17
view all 22 authors...
We report on the first Earth-scale quantum sensor network based on optical atomic clocks aimed at dark matter (DM) detection. Exploiting differences in the susceptibilities to the fine-structure constant of essential parts of an optical atomic clock, i.e., the cold atoms and the optical reference cavity, we can perform sensitive searches for DM signatures without the need for real-time comparisons of the clocks. We report a two orders of magnitude improvement in constraints on transient variatio...
Source
Cited By27
Newest
#1Sebastian KokeH-Index: 10
#2Erik BenklerH-Index: 11
Last. Gesine GroscheH-Index: 27
view all 4 authors...
Source
#1A. Golovizin (FIAN: Lebedev Physical Institute)H-Index: 4
#2D. O. Tregubov (FIAN: Lebedev Physical Institute)H-Index: 8
Last. Nikolai N. Kolachevsky (FIAN: Lebedev Physical Institute)H-Index: 19
view all 0 authors...
Optical atomic clocks have already overcome the eighteenth decimal digit of instability and uncertainty, demonstrating incredible control over external perturbations of the clock transition frequency. At the same time, there is an increasing demand for atomic (ionic) transitions and new interrogation and readout protocols providing minimal sensitivity to external fields and possessing practical operational wavelengths. One of the goals is to simplify the clock operation while maintaining the rel...
Source
#1Grant M. Brodnik (UCSB: University of California, Santa Barbara)H-Index: 4
#2Mark W. Harrington (UCSB: University of California, Santa Barbara)H-Index: 5
Last. Daniel J. Blumenthal (UCSB: University of California, Santa Barbara)H-Index: 52
view all 10 authors...
Precision optical-frequency and phase synchronization over fibre is critical for a variety of applications, from timekeeping to quantum optics. Such applications utilize ultra-coherent sources based on stabilized table-top laser systems. Chip-scale versions of these systems may dramatically broaden the application landscape by reducing the cost, size and power of such exquisite sources. Links based on the required narrow-linewidth integrated lasers, compact reference cavities and control methodo...
Source
Optical fibers have been recognized as one of the most promising host material for high phase coherence optical frequency transfer over thousands of kilometers. In the pioneering work, the active phase noise cancellation (ANC) technique has been widely used for suppressing the fiber phase noise introduced by the environmental perturbations, in which an ideal phase detector with high resolution and unlimited detection range is needed to extract the fiber phase noise, in particular for noisy fiber...
#2Olivier Lopez (Sorbonne)H-Index: 2
#3Anne Amy-KleinH-Index: 34
Last. Paul-Eric PottieH-Index: 20
view all 4 authors...
Fundamental limits of fiber link are set by non-reciprocal effects that violate the hypothesis of equality between forward and backward path. Non-reciprocal noise arises technically from the set-up asymmetry, and fundamentally by the Sagnac effect when the fiber link encloses a non-zero area. As a pre-requisite for observation of Sagnac effect in fiber links, we present a study on phase noise and frequency stability contributions affecting coherent optical frequency transfer in bi-directional fi...
Source
#2Mads TonnesH-Index: 1
#4Anne Amy-KleinH-Index: 34
Last. Paul-Eric PottieH-Index: 20
view all 6 authors...
We introduce multi branch repeater laser stations (MLSs) for the dissemination of an ultra stable signal from one point to multiple users and the simultaneous evaluation of the stability and accuracy of multiple links. We perform the study of the noise floor of this new instrument. We present then an optical fiber network of 4800 km built with three MLSs and 13 repeater laser stations (RLSs). We show the multi user optical frequency dissemination on four links totalizing 2198 km with uncertainti...
Source
#1S. AfachH-Index: 8
#2Ben C. BuchlerH-Index: 19
Last. Jian-Wei ZhangH-Index: 5
view all 49 authors...
Results are reported from the first full-scale search for transient signals from exotic fields of astrophysical origin using data from a newly constructed Earth-scale detector: the Global Network of Optical Magnetometers for Exotic physics searches (GNOME). Data collected by the GNOME consist of correlated measurements from optical atomic magnetometers located in laboratories all over the world. GNOME data are searched for patterns of signals propagating through the network consistent with exoti...
Source
#1A. GogyanH-Index: 4
#2Paweł Tecmer (UMK: Nicolaus Copernicus University in Toruń)H-Index: 20
We have identified magic wavelengths for 1S0 ↔ 3P1,2 (mJ = 0) transitions and zero-magic wavelengths for the 3P1,2 (mJ = 0) states of 200Hg atoms, analysed the robustness of the magic conditions with respect to wavelength and polarization imperfections. We show that the most experimentally feasible magic wavelength for the 1S0 ↔ 3P2 transition is 351.8 nm of π polarized light. Relevant transition wavelengths and transition strengths are calculated using the state-of-the-art Complete Active Space...
Source
#1Ekkehard PeikH-Index: 38
#2Thorsten SchummH-Index: 30
Last. Peter G. ThirolfH-Index: 17
view all 6 authors...
The low-energy, long-lived isomer in ^{229}h, first studied in the 1970s as an exotic feature in nuclear physics, continues to inspire a multidisciplinary community of physicists. Using the nuclear resonance frequency, determined by the strong and electromagnetic interactions inside the nucleus, it is possible to build a highly precise nuclear clock that will be fundamentally different from all other atomic clocks based on resonant frequencies of the electron shell. The nuclear clock will ope...
Source
#1Grant M. BrodnikH-Index: 4
#2Mark W. HarringtonH-Index: 5
Last. Daniel J. BlumenthalH-Index: 52
view all 10 authors...
Precision frequency and phase synchronization between distinct fiber interconnected nodes is critical for a wide range of applications, including atomic timekeeping, quantum networking, database synchronization, ultra-high-capacity coherent optical communications and hyper-scale data centers. Today, many of these applications utilize precision, tabletop laser systems, and would benefit from integration in terms of reduced size, power, cost, and reliability. In this paper we report a record low 3...
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.