Vacuum birefringence in strong magnetic fields: (I) Photon polarization tensor with all the Landau levels

We report results on measurements of magneto-photoluminescence at 4.2 K in In x Ga 1-x As multiple quantum wells in high magnetic fields (25 Tesla) and laser intensities (25 GW/cm 2) using 150 fs pulses. Novel magneto-plasma phenomena are observed, including strikingly narrow emission lines of Landau levels above a threshold intensity and the suppression of exciton-mixing-induced anti-crossings.

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The Integrated Density of States for a Random Schrödinger Operator in Strong Magnetic Fields. II. Asymptotics near Higher Landau Levels

Partial Differential Equations and Spectral Theory ◽

10.1007/978-3-0348-8231-6_32 ◽

2001 ◽

pp. 281-292

Author(s):

Georgi D. Raikov

Keyword(s):

Magnetic Fields ◽

Density Of States ◽

Schrödinger Operator ◽

Landau Levels ◽

Integrated Density Of States ◽

Schrodinger Operator ◽

Strong Magnetic Fields ◽

Random Schrödinger Operator ◽

Random Schrodinger Operator

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Di-lepton production from a single photon in strong magnetic fields: vacuum dichroism

Journal of High Energy Physics ◽

10.1007/jhep01(2021)093 ◽

2021 ◽

Vol 2021 (1) ◽

Author(s):

Koichi Hattori ◽

Hidetoshi Taya ◽

Shinsuke Yoshida

Keyword(s):

Magnetic Field ◽

Strong Magnetic Field ◽

Single Photon ◽

Landau Levels ◽

Longitudinal Momentum ◽

Magnetic Field Direction ◽

Photon Polarization ◽

Lepton Production ◽

Strong Magnetic Fields ◽

The Magnetic Field

Abstract We study di-lepton production from a single photon in the presence of a strong constant magnetic field. By the use of the Ritus-basis formalism, we analytically evaluate the photon-to-di-lepton conversion vertex with fully taking into account the non-perturbative interactions between the produced fermions and the strong magnetic field. We show that the di-lepton spectrum becomes anisotropic with respect to the magnetic-field direction and depends on the photon polarization as a manifestation of the vacuum dichroism in a strong magnetic field. According to the energy conservation in the presence of the Landau quantization, not only the transverse momentum of the produced fermions but also the longitudinal momentum is discretized, and the di-lepton spectrum exhibits spike structures as functions of the incident photon energy and the magnetic field strength. We also show that the di-lepton production is strictly prohibited for massless fermions in the lowest Landau levels as an analogue of the so-called helicity suppression.

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TERAHERTZ MAGNETOSPECTROSCOPY OF HEAVILY-DOPED Si(P)

International Journal of Modern Physics B ◽

10.1142/s0217979209062451 ◽

2009 ◽

Vol 23 (12n13) ◽

pp. 2856-2860

Author(s):

R. A. LEWIS ◽

R. E. M. VICKERS

Keyword(s):

Magnetic Fields ◽

Conduction Band ◽

Zeeman Splitting ◽

Landau Levels ◽

Metastable States ◽

Absorption Lines ◽

Strong Magnetic Fields ◽

Heavily Doped

We demonstrate that lightly-doped Si ( P ) displays extremely sharp absorption lines – the narrowest yet reported for any impurity in natural Si . The Zeeman splitting of many of these lines in magnetic fields <10 T has been studied previously by a number of groups. In this paper we focus on the behavior of metastable states associated with conduction-band Landau levels. The use of a rather heavily doped sample and strong magnetic fields, up to 18 T, assists in the observation of these.

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