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Theoretical and experimental results on optical ring dark solitary waves are presented, emphasizing the interplay between initial dark beam contrast, phase-shift magnitude, background-beam intensity and saturation of the nonlinearity are…

Pattern Formation and Solitons · Physics 2007-05-23 A. Dreischuh , D. Neshev , G. G. Paulus , F. Grasbon , H. Walther

A variety of detectors has been proposed for dark matter direct detection, but most of them -- by the fact -- are still at R&D stage. In many cases, it is claimed that the lack of an adequate detectors' radio-purity might be compensated…

It is a correction paper on "P.J. Wan and C.W. Yi, "Coverage by Randomly Deployed Wireless Sensor Networks", IEEE Transaction On Information Theory, vol.52, No.6, June 2006." In the above paper, Lemma (4), on page 2659 play the key role for…

Information Theory · Computer Science 2009-04-23 Bhupendra Gupta

We examine high-resolution gravitational N-body simulations of the $\Omega=1$ cold dark matter (CDM) model in order to determine whether there is any normalization of the initial density fluctuation spectrum that yields acceptable results…

Astrophysics · Physics 2009-10-22 James M. Gelb , Edmund Bertschinger

Three dark matter direct detection experiments (DAMA/LIBRA, CoGeNT, and CRESST-II) have each reported signals which are not consistent with known backgrounds, but resemble that predicted for a dark matter particle with a mass of roughly…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-30 Chris Kelso , Dan Hooper , Matthew R. Buckley

To appear in Phys. Rev. Lett. together with the author's Reply.

Astrophysics · Physics 2008-11-26 J. I. Collar

We theoretically study the propagation of light through a cold atomic medium, where the effects of motion, laser intensity, atomic density, and polarization can all modify the properties of the scattered light. We present two different…

Quantum Physics · Physics 2016-08-24 Bihui Zhu , John Cooper , Jun Ye , Ana Maria Rey

I present the status of direct dark matter detection with specific attention to the experimental results and their phenomenological interpretation in terms of dark matter interactions. In particular I review a new and more general approach…

High Energy Physics - Phenomenology · Physics 2014-02-10 Paolo Panci

Einstein field equations under spherically symmetric space-times are considered here in connection to dark energy investigation. A set of solutions are obtained for a kinematical $\Lambda$ model, viz., $\Lambda \sim (\dot a/a)^2$ without…

General Relativity and Quantum Cosmology · Physics 2009-05-12 Utpal Mukhopadhyay , P. C. Ray , Saibal Ray , S. B. Datta Choudhury

We compare two different models of transport of light in a disordered system with a spherical Gaussian distribution of scatterers. A coupled dipole model, keeping into account all interference effects, is compared to an incoherent model,…

We study the impact of the assumed velocity distribution of galactic dark matter particles on the interpretation of results from nuclear recoil detectors. By converting experimental data to variables that make the astrophysical unknowns…

High Energy Physics - Phenomenology · Physics 2012-03-01 Mads T. Frandsen , Felix Kahlhoefer , Christopher McCabe , Subir Sarkar , Kai Schmidt-Hoberg

Mirror dark matter offers a framework to explain the existing dark matter direct detection experiments. Here we confront this theory with the most recent experimental data, paying attention to the various known systematic uncertainties, in…

High Energy Physics - Phenomenology · Physics 2010-11-11 R. Foot

The question raised by [Bastin and Martin 2003 J. Phys. B: At. Mol. Opt. Phys. 36, 4201] is examined and used to explain in more detail a key point of our calculations. They have sought to rebut criticisms raised by us of certain techniques…

Quantum Physics · Physics 2009-11-10 M. Abdel-Aty , A. -S. F. Obada

We analyze the applicability of our analytical theory of combination harmonics in canonical low-dimensional multi-band Fermi liquids, which was recently criticized by Champel (Phys. Rev. B 65, 153403 (2002)). It is shown that his claim that…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 A. S. Alexandrov , A. M. Bratkovsky

Recently, the CDMS/Si experiment has observed a low energy excess of events in their dark matter search. In light of this new result we update the mirror dark matter explanation of the direction detection experiments. We find that the DAMA,…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-16 R. Foot

Machine learning has had an enormous impact in many scientific disciplines. Also in the field of low-temperature plasma modeling and simulation it has attracted significant interest within the past years. Whereas its application should be…

Plasma Physics · Physics 2023-12-18 Jan Trieschmann , Luca Vialetto , Tobias Gergs

The abundance of dark matter satellites and subhalos, the existence of density cusps at the centers of dark matter halos, and problems producing realistic disk galaxies in simulations are issues that have raised concerns about the viability…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 Joel R. Primack

Given two density matrices $\rho$ and $\sigma$, there are a number of different expressions that reduce to the $\alpha$-R\'enyi relative entropy of $\rho$ with respect to $\sigma$ in the classical case; i.e., when $\rho$ and $\sigma$…

Mathematical Physics · Physics 2018-11-14 Eric A. Carlen , Rupert L. Frank , Elliott H. Lieb

The aim of this short note is to clarify some of the claims made in the comparison made in [S. Lloyd, On the uncomputability of the spectral gap, arXiv:1602.05924] between our recent result [T.S. Cubitt, D. Perez-Garcia, M.M. Wolf,…

Quantum Physics · Physics 2016-03-03 Toby S. Cubitt , David Perez-Garcia , Michael M. Wolf

Dark matter density profiles based upon Lambda-CDM cosmology motivate an ansatz velocity distribution function with fewer high velocity particles than the Maxwell-Boltzmann distribution or proposed variants. The high velocity tail of the…

Cosmology and Nongalactic Astrophysics · Physics 2011-02-25 Mariangela Lisanti , Louis E. Strigari , Jay G. Wacker , Risa H. Wechsler
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