Cosmological Structure Formation

Primack, Joel R.

doi:10.1017/9781316535783.008

Cited by 11 publications

(14 citation statements)

References 175 publications

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“…There is overwhelming astrophysical and cosmological evidence for the existence of cold dark matter (DM) [1][2][3][4]. However, the detailed properties of the DM, in particular its mass, are highly unconstrained [5].…”

Section: Introductionmentioning

confidence: 99%

Ultralight dark matter detection with mechanical quantum sensors

Carney,

Hook,

Liu

et al. 2019

Preprint

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We consider the use of quantum-limited mechanical force sensors to detect ultralight (sub-meV) dark matter candidates which are weakly coupled to the standard model. We emphasize the scalable nature of an array of sensors, which can be used to reject many backgrounds, and leads to sensitivities scaling at least as fast as √ N det . We show that for some ultralight dark matter candidates, a pair of milligram-scale, mechanical sensors operating at the standard quantum limit already has detection reach competitive with other quantum acceleration sensors. CONTENTS I. Introduction 1 II. Ultralight dark matter 2 A. Vector B-L dark matter 3 B. Scalar coupling to neutrons 3 III. Detection with optomechanical force sensors 4 A. Thermal noise 5 B. Measurement noise and the "standard quantum limit" 5 C. Detection with an array 6 IV. Detection reach and search strategy 7 V. Conclusions and outlook 8 A. DM signal power spectral density 8 B. Continuous force sensing with optomechanics 9 1. Single-sided optomechanical cavity 9 2. Inferring force from position measurement 11 References 13

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Section: Introductionmentioning

confidence: 99%

Ultralight dark matter detection with mechanical quantum sensors

Carney,

Hook,

Liu

et al. 2019

Preprint

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“…A very recent concise summary can be found in [54]. We briefly describe them below and refer the details to these references.…”

Section: )mentioning

confidence: 99%

“…There are possible candidates for WDM, including sterile neutrino, light gravitinos and photino. Although WDM is expect to predict a more smooth dark matter profile, allows less dwarf satellites, and alleviates the cuspy halo problem, actual simulations indicate that WDM does not do much better than CDM [54,55].…”

Section: )mentioning

confidence: 99%

A survey of dark matter and related topics in cosmology

Young

2016

Front. Phys.

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“…the distribution of dark and baryonic matter in the cosmic web. The details of cosmic structure formation are ripe with rich and complicated physics and are not included in this study; see [21,22]. To set a bound on late universe accretion, all accretion terms here are set by the spatially-averaged fluid quantities.…”

Section: Late Universe Accretionmentioning

confidence: 99%

Cosmological evolution of primordial black holes

Rice

Zhang

2017

Journal of High Energy Astrophysics

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The cosmological evolution of primordial black holes (PBHs) is considered. A comprehensive view of the accretion and evaporation histories of PBHs across the entire cosmic history is presented, with focus on the critical mass holes. The critical mass of a PBH for current era evaporation is $M_{cr}\sim 5.1\times10^{14}$ g. Across cosmic time such a black hole will not accrete radiation or matter in sufficient quantity to hasten the inevitable evaporation, if the black hole remains within an average volume of the universe. The accretion rate onto PBHs is most sensitive to the mass of the hole, the sound speed in the cosmological fluid, and the energy density of the accreted components. It is not easy for a PBH to accrete the average cosmological fluid to reach $30M_\odot$ by $z\sim0.1$, the approximate mass and redshift of the merging BHs that were the sources of the gravitational wave events GW150914 and GW151226. A PBH located in an overdense region can undergo enhanced accretion leading to the possibility of growing by many orders of magnitude across cosmic history. Thus, two merging PBHs are a plausible source for the observed gravitational wave events. However, it is difficult for isolated PBHs to grow to supermassive black holes (SMBHs) at high redshift with masses large enough to fit observational constraints.Comment: Resubmitted after correcting an error in the previous version; matches published version in the Journal of High Energy Astrophysics; 33 pages, 5 figures, 3 table

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Cosmological Structure Formation

Cited by 11 publications

References 175 publications

Ultralight dark matter detection with mechanical quantum sensors

Ultralight dark matter detection with mechanical quantum sensors

A survey of dark matter and related topics in cosmology

Cosmological evolution of primordial black holes

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