Measuring speed of the light emitted by an ultrarelativistic source

Aleksandrov, E. B.; Aleksandrov, P. A.; Zapasskiĭ, V. S.; Korchuganov, V.; Stirin, Alexander

doi:10.1134/s0021364011170024

Cited by 29 publications

(39 citation statements)

References 6 publications

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“…Stringent bounds are obtainable because the p-wave amplitude due to the short range strong interaction depends linearly on energy and differs markedly from that due to the new longer range interaction. A n− 208 Pb scattering experiment [17] in the neutron energy range 1 to 26 keV measured the differential cross section (under the assumption that the scattering amplitude can be expanded in s and p waves) to be dσ/dΩ = σ 0 (1 + ωE cos θ) /(4π) ,…”

mentioning

confidence: 99%

Proton Size Anomaly

Barger¹,

Chiang²,

Keung³

et al. 2011

Phys. Rev. Lett.

134

138

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A measurement of the Lamb shift in muonic hydrogen yields a charge radius of the proton that is smaller than the CODATA value by about 5 standard deviations. We explore the possibility that new scalar, pseudoscalar, vector, and tensor flavor-conserving nonuniversal interactions may be responsible for the discrepancy. We consider exotic particles that, among leptons, couple preferentially to muons and mediate an attractive nucleon-muon interaction. We find that the many constraints from low energy data disfavor new spin-0, spin-1, and spin-2 particles as an explanation.

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mentioning

confidence: 99%

Proton Size Anomaly

Barger¹,

Chiang²,

Keung³

et al. 2011

Phys. Rev. Lett.

134

138

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“…We assume, however, that the probe beam is not perfectly resonant with any of transitions and neglect in in this work possible absorption of the light related to real transitions between atomic states. Such situation is typical in the spin noise spectroscopy [19,32].…”

mentioning

confidence: 89%

“…In this paper we investigate, both theoretically and experimentally, the spin fluctuations in the atomic gas in the presence of strong linearly polarized probe beam. The spin noise spectroscopy has initially emerged as virtually perturbation-free technique to study the spin dynamics and fine structure of the spin states [19][20][21][22][23][24][25]. Increasing the probe beam intensity makes it possible to address a plethora of non-equilibrium phenomena including incoherent effects related with relaxation processes and also the coherent phenomena [26][27][28][29][30].…”

mentioning

confidence: 99%

Nonlinear spectroscopy of high-spin fluctuations

Fomin,

Petrov,

Ryzhov

et al. 2021

Preprint

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“…However, in all systems, which have sufficient spin and orbital degrees of freedom and accessible optical transitions – which holds for most atoms and semiconductor alloys – the spin dynamic can as well be probed optically due to the optical selection rules . Hence, an effective but fluctuating spin polarization can be mapped onto the intensity of a transmitted probe light beam due to dichroic bleaching of the participating optical transitions . However, any continuous or modulated injection of carriers due to absorption can alter the spin dynamic significantly.…”

Section: Basics Of Spin Noisementioning

confidence: 99%

The rise of spin noise spectroscopy in semiconductors: From acoustic to GHz frequencies

Hübner

Berski

Dahbashi

et al. 2014

Physica Status Solidi (b)

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This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.This article gives an overview on the advance of spin noise spectroscopy (SNS) in semiconductors in the past 8 years from the first measurements in bulk n-GaAs [Oestreich et al., Phys. Rev. Lett. 95, 216603 (2005)] up to the recent achievement of optical detection of the intrinsic spin fluctuations of a single hole confined in an individual self-assembled quantum dot [Dahbashi et al., arXiv:1306.3183 (2013]. We discuss the general technical implementation of optical SNS and the invaluable profit of the introduction of real-time fast Fourier transform analysis into the data acquisition. By now, the full spin dynamic from the milli-to picosecond timescales can be addressed by SNS and the technique quickly strides ahead to enable real quantum non-demolition measurements in semiconductors.Spin noise spectra recorded in 2005 in bulk n-GaAs with approximately 10 9 electron spins (Oestreich et al.) and 2013 (Dahbashi et al.) for a single hole spin. The integration time for the latter is more than a factor of 40 shorter due to the significant advances in the measurement technique.

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Measuring speed of the light emitted by an ultrarelativistic source

Cited by 29 publications

References 6 publications

Proton Size Anomaly

Proton Size Anomaly

Nonlinear spectroscopy of high-spin fluctuations

The rise of spin noise spectroscopy in semiconductors: From acoustic to GHz frequencies

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