“Unmoved” Atomic Transitions of Alkali Metals in External Magnetic Fields

Using the spectrum of selective reflection (SR) of laser radiation from the boundary of the surface of the dielectric window of the spectroscopic nanocells – pairs of rubidium atoms, the value of the magnetic field applied to the nanocell is measured. A method is proposed for calculating the magnetic induction B in the range of 0.1–6.0 kG based on the ratio of the frequency intervals between atomic transitions, which greatly simplifies the determination of B, particularly, there is no need for a reference spectrum at B = 0. To implement the SR process a 300-nm column of vapors of Rb atoms is used, and atomic transitions with a sub- Doppler spectral width of 80–90 MHz are formed. This leads to frequency separation of transitions in SR spectrum that is important for the proposed method. SR spectrum can be analyzed using a specially designed computer program that accelerates the data processing. The small thickness of the vapor column allows high spatial resolution, which is important in the case of inhomogeneous magnetic fields.

Download Full-text

Atomic transitions of Rb, D2 line in strong magnetic fields: Hyperfine Paschen–Back regime

Optics Communications ◽

10.1016/j.optcom.2014.08.022 ◽

2015 ◽

Vol 334 ◽

pp. 208-213 ◽

Cited By ~ 12

Author(s):

A. Sargsyan ◽

A. Tonoyan ◽

G. Hakhumyan ◽

C. Leroy ◽

Y. Pashayan-Leroy ◽

...

Keyword(s):

Magnetic Fields ◽

Strong Magnetic Fields ◽

Atomic Transitions

Download Full-text

Saturated-absorption spectroscopy revisited: atomic transitions in strong magnetic fields (>20 mT) with a micrometer-thin cell

Optics Letters ◽

10.1364/ol.39.002270 ◽

2014 ◽

Vol 39 (8) ◽

pp. 2270 ◽

Cited By ~ 29

Author(s):

A. Sargsyan ◽

A. Tonoyan ◽

R. Mirzoyan ◽

D. Sarkisyan ◽

A. M. Wojciechowski ◽

...

Keyword(s):

Magnetic Fields ◽

Absorption Spectroscopy ◽

Strong Magnetic Fields ◽

Saturated Absorption ◽

Atomic Transitions ◽

Saturated Absorption Spectroscopy

Download Full-text

Alkali metal atoms in strong magnetic fields: “Guiding” atomic transitions foretell the characteristics of all transitions of the D1 line

JETP Letters ◽

10.1134/s0021364015050148 ◽

2015 ◽

Vol 101 (5) ◽

pp. 303-307 ◽

Cited By ~ 13

Author(s):

A. Sargsyan ◽

G. Hakhumyan ◽

A. Papoyan ◽

D. Sarkisyan

Keyword(s):

Magnetic Fields ◽

Alkali Metal ◽

Strong Magnetic Fields ◽

Atomic Transitions ◽

Metal Atoms

Download Full-text

Atomic transitions of Cs D2 line in strong transverse magnetic fields

Journal of Contemporary Physics (Armenian Academy of Sciences) ◽

10.3103/s1068337215040040 ◽

2015 ◽

Vol 50 (4) ◽

pp. 317-326 ◽

Cited By ~ 6

Author(s):

A. D. Sargsyan ◽

G. T. Hakhumyan ◽

A. H. Amiryan ◽

C. Leroy ◽

H. S. Sarkisyan ◽

...

Keyword(s):

Magnetic Fields ◽

Transverse Magnetic ◽

Atomic Transitions ◽

Strong Transverse

Download Full-text

AVOIDED CROSSINGS AND AUTOIONIZATION WIDTHS OF HYDROGEN AND ALKALI METALS IN MAGNETIC FIELDS

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1982209 ◽

1982 ◽

Vol 43 (C2) ◽

pp. C2-113-C2-126 ◽

Cited By ~ 1

Author(s):

M. L. Zimmerman ◽

M. M. Kash ◽

G. R. Welch

Keyword(s):

Magnetic Fields ◽

Alkali Metals ◽

Avoided Crossings

Download Full-text

DECAY OF SPIN-ONE PARTICLE INTO TWO PHOTONS IN PRESENCE OF UNIFORM EXTERNAL MAGNETIC FIELD

International Journal of Modern Physics A ◽

10.1142/s0217751x07034416 ◽

2007 ◽

Vol 22 (04) ◽

pp. 707-720 ◽

Cited By ~ 7

Author(s):

DILIP ANGOM ◽

KAUSHIK BHATTACHARYA ◽

SAURABH D. RINDANI

Keyword(s):

Magnetic Field ◽

External Magnetic Field ◽

Magnetic Fields ◽

Electric Field ◽

Elementary Particles ◽

Decay Process ◽

Rotational Invariance ◽

Atomic Transitions ◽

Uniform External Magnetic Field ◽

Cp Invariance

Yang's theorem states that an initial J = 1 state cannot decay into two photons. Because of this result some reactions relating to elementary particles or atomic transitions can be ruled out. The theorem is not valid in the presence of background electric or magnetic fields. In this work we show that the decay of a J = 1 particle into two photons is permitted by the Bose symmetry and rotational invariance when the background of the decay process is not pure vacuum but contains an external classical magnetic/electric field. We also discuss constraints on these amplitudes from the CP invariance.

Download Full-text