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A very interesting quantum mechanical effect is the emergence of gravity-induced interference, which has already been detected. This effect also shows us that gravity is at the quantum level not a purely geometric effect, the mass of the…

量子物理 · 物理学 2009-10-31 A. Camacho

We thoroughly explore the cosmic gravitational focusing of cosmic neutrino fluid (C$\nu$F) by dark matter (DM) halo using both general relativity for a point source of gravitational potential and Boltzmann equations for continuous…

高能物理 - 唯象学 · 物理学 2024-07-08 Shao-Feng Ge , Pedro Pasquini , Liang Tan

We test the Principle of Equivalence for particles and antiparticles, using CPLEAR data on tagged K0 and K0bar decays into pi^+ pi^-. For the first time, we search for possible annual, monthly and diurnal modulations of the observables…

高能物理 - 实验 · 物理学 2009-09-11 CPLEAR Collaboration , J. Ellis , N. E. Mavromatos , D. V. Nanopoulos

We compare the expected effects of so-called gravitationally enhanced depolarization of ultracold neutrons to measurements carried out in a spin-precession chamber exposed to a variety of vertical magnetic-field gradients. In particular, we…

In this study, we explore the potential of using TianQin missions to probe the local gravitational effects of dark matter. The TianQin project plans to launch satellites at both low and high orbits. High-precision orbit determination is…

广义相对论与量子宇宙学 · 物理学 2026-02-24 Zheng-Cheng Liang , Fa-Peng Huang , Xuefeng Zhang , Yi-Ming Hu

The measurement of B meson decay properties provides an alternative approach for searches for physics beyond the Standard Model. We present two different measurements performed with data taken in 2011 with the ATLAS detector at the Large…

高能物理 - 实验 · 物理学 2013-10-17 Jochen Schieck

I review several different calculations, coming from string theory, nonperturbative quantum gravity and analyses of black holes that lead to predictions of phenomena that would uniquely be signatures of quantum gravitational effects. These…

广义相对论与量子宇宙学 · 物理学 2016-08-31 Lee Smolin

In the world with axion the precise measurement of gravitational force and check of the equivalence principle at small distances, $\lambda\sim 1cm$ and less, could provide an additional test of CP symmetry. Using the chiral approach, we…

高能物理 - 唯象学 · 物理学 2008-11-26 Maxim Pospelov

We propose to measure leptonic CP phase, after neutrino mass hierarchy is established, with an upgrade of the PINGU detector and using atmospheric neutrino flux. The upgrade, called super-PINGU, will require a few megaton effective volume…

高能物理 - 唯象学 · 物理学 2015-01-14 Soebur Razzaque , A. Yu. Smirnov

The existence of a cosmological magnetic field could be revealed by the effects of non-trivial helicity on large scales. We evaluate a CP odd statistic, $Q$, using gamma ray data obtained from Fermi satellite observations at high galactic…

宇宙学与河外天体物理 · 物理学 2014-09-12 Hiroyuki Tashiro , Wenlei Chen , Francesc Ferrer , Tanmay Vachaspati

Fermilab operates the world's most intense antiproton source. Newly proposed experiments can use those antiprotons either parasitically during Tevatron Collider running or after the Tevatron Collider finishes in about 2011. For example, the…

高能物理 - 实验 · 物理学 2014-11-20 Daniel M. Kaplan

We study local CP-violation on the lattice by measuring the local correlation between the topological charge density and the electric dipole moment of quarks, induced by a constant external magnetic field. This correlator is found to…

高能物理 - 格点 · 物理学 2015-06-18 G. S. Bali , F. Bruckmann , G. Endrodi , Z. Fodor , S. D. Katz , A. Schafer

A recent measurement of the gravitational redshift was based on interference of matter waves. Operation in microgravity can improve it by a factor of $10^5$ and, in some models, even $10^{10}$.

广义相对论与量子宇宙学 · 物理学 2017-08-23 Holger Mueller , Michael A. Hohensee , Nan Yu

We propose methods and present calculations that can be used to search for evidence of cosmic fields by investigating the parity-violating effects, including parity nonconservation amplitudes and electric dipole moments, that they induce in…

高能物理 - 唯象学 · 物理学 2014-11-13 B. M. Roberts , Y. V. Stadnik , V. A. Dzuba , V. V. Flambaum , N. Leefer , D. Budker

We consider the growth of cosmological perturbations in modified gravity models where a scalar field mediates a non-universal Yukawa force between different matter species. The growth of the density contrast is altered for scales below the…

宇宙学与河外天体物理 · 物理学 2014-11-20 Philippe Brax , Carsten van de Bruck , Anne-Christine Davis , Douglas Shaw

This review is motivated by the first result of the ALPHA-g experiment at CERN, which indicates that atoms and anti-atoms have different gravitational charges; according to measurements, the gravitational acceleration of anti-atoms is only…

综合物理 · 物理学 2025-04-01 Dragan S Hajdukovic

While global cosmological and local galactic abundance of dark matter is well established, its identity, physical size and composition remain a mystery. In this paper, we analyze an important question of dark matter detectability through…

广义相对论与量子宇宙学 · 物理学 2018-10-31 Evan D. Hall , Thomas Callister Valery V. Frolov , Holger Müller , Maxim Pospelov , Rana X Adhikari

Observations of high energy neutrinos, both in the laboratory and from cosmic sources, can be a useful probe in searching for new physics. Such observations can provide sensitive tests of Lorentz invariance violation (LIV), which may be a…

高能物理 - 唯象学 · 物理学 2018-03-23 Floyd W. Stecker

Motivated by recent experimental proposals to search for extragalactic cosmic rays (including anti-matter from distant galaxies), we study particle propagation through the intergalactic medium (IGM). We first use estimates of the magnetic…

天体物理学 · 物理学 2016-08-15 Fred C. Adams , Katherine Freese , Gregory Laughlin , Gregory Tarlé , Nathan Schwadron

We consider CP violating effects in decays of the type $B^\pm\to \gamma a^\pm_{1,2}$ where $a_{1,2}$ are the $J^P=1^+$ and $2^+$ resonances each decaying to the common final state via $a^\pm_{1,2} \to\pi^\pm\rho^0$. The resonances enhance…

高能物理 - 唯象学 · 物理学 2010-11-01 D. Atwood , A. Soni