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Journal articles on the topic 'Fine structure constant'

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Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Benka, Stephen. "The fine-structure constant." Physics Today 57, no. 2 (February 2004): 9. http://dx.doi.org/10.1063/1.4796393.

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2

Kinoshita, Toichiro. "The fine structure constant." Reports on Progress in Physics 59, no. 11 (November 1, 1996): 1459–92. http://dx.doi.org/10.1088/0034-4885/59/11/003.

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3

Nath, Biman. "The fine structure constant." Resonance 20, no. 5 (May 2015): 383–88. http://dx.doi.org/10.1007/s12045-015-0196-1.

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4

Shiner, D. L., and R. Dixson. "Measuring the fine structure constant using helium fine structure." IEEE Transactions on Instrumentation and Measurement 44, no. 2 (April 1995): 518–21. http://dx.doi.org/10.1109/19.377896.

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5

Gilson, James G. "Calculating the Fine‐Structure Constant." Physics Essays 9, no. 2 (June 1996): 342–53. http://dx.doi.org/10.4006/1.3029242.

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6

Efimov, Sergei P. "Symmetries of fine-structure constant." Advanced Studies in Theoretical Physics 7 (2013): 635–46. http://dx.doi.org/10.12988/astp.2013.3431.

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7

Schönfeld, E. "Electron and Fine-Structure Constant." Metrologia 27, no. 3 (January 1, 1990): 117–25. http://dx.doi.org/10.1088/0026-1394/27/3/002.

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8

Osborne, Ian S. "Refining the fine-structure constant." Science 360, no. 6385 (April 12, 2018): 166.6–167. http://dx.doi.org/10.1126/science.360.6385.166-f.

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9

KÜHNE, RAINER W. "TIME-VARYING FINE-STRUCTURE CONSTANT REQUIRES COSMOLOGICAL CONSTANT." Modern Physics Letters A 14, no. 27 (September 7, 1999): 1917–22. http://dx.doi.org/10.1142/s021773239900198x.

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Webb et al. presented preliminary evidence for a time-varying fine-structure constant. We show Teller's formula for this variation to be ruled out within the Einstein–de Sitter universe, however, it is compatible with cosmologies which require a large cosmological constant.

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10

Drake, G. WF. "Progress in helium fine-structure calculations and the fine-structure constant." Canadian Journal of Physics 80, no. 11 (November 1, 2002): 1195–212. http://dx.doi.org/10.1139/p02-111.

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The long-term goal of this work is to determine the fine-structure constant α from a comparison between theory and experiment for the fine-structure splittings of the helium 1s2p 3PJ states. All known terms of order α5 a.u. (α7 mc2) arising from the electronelectron interaction, and recoil corrections of order α4 µ / M a.u. are evaluated and added to previous tabulation. The predicted energy splittings are ν0,1 = 29 616.946 42(18) MHz and ν1,2 = 2291.154 62(31) MHz. Although the computational uncertainty is much less than ±1 kHz, there is an unexplained discrepancy between theory and experiment of 19.4(1.4) kHz for ν1,2. PACS Nos.: 31.30Jv, 32.10Fn

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11

Sánchez, Jesús. "Calculation of the Fine-Structure Constant." Journal of High Energy Physics, Gravitation and Cosmology 04, no. 03 (2018): 510–18. http://dx.doi.org/10.4236/jhepgc.2018.43029.

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12

Harpaz, Amos. "A “Fine Structure Constant” for Inertia." International Journal of Astronomy and Astrophysics 03, no. 04 (2013): 395–98. http://dx.doi.org/10.4236/ijaa.2013.34046.

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13

Kinoshita, T. "Accuracy of the fine-structure constant." IEEE Transactions on Instrumentation and Measurement 38, no. 2 (April 1989): 172–74. http://dx.doi.org/10.1109/19.192267.

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14

Schönfeld, E., and P. Wilde. "Electron and fine structure constant II." Metrologia 45, no. 3 (June 2008): 342–55. http://dx.doi.org/10.1088/0026-1394/45/3/012.

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15

Keyes, R. W. "The fine-structure constant in electronics." European Journal of Physics 24, no. 5 (July 28, 2003): L17—L18. http://dx.doi.org/10.1088/0143-0807/24/5/102.

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16

Schwarzschild, Bertam M. "How constant is the fine-structure." Physics Today 54, no. 10 (October 2001): 9. http://dx.doi.org/10.1063/1.4796227.

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17

Alippi, Adriano. "Evaluation of the Fine Structure Constant." Journal of Modern Physics 11, no. 12 (2020): 1918–25. http://dx.doi.org/10.4236/jmp.2020.1112120.

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18

Tomilin, K. A. "Fine-structure constant and dimension analysis." European Journal of Physics 20, no. 5 (September 1, 1999): L39—L40. http://dx.doi.org/10.1088/0143-0807/20/5/404.

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19

Brown, Philip Robert. "Mysticism and the Fine Structure Constant." Journal of Scientific Exploration 34, no. 3 (September 15, 2020): 455–92. http://dx.doi.org/10.31275/20201289.

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The number $\pi/(2\cdot6^3)$, suggested as the value of the fine structure constant $\alpha$ by Werner Heisenberg in 1935, is modified by "quantizing" $\pi$. This obtains, by empirical discovery, a new number which is much closer to the current measured value of the fine structure constant and within the range of variation of the fine structure constant reported by astronomers from their observation of the spectra of distant quasars. The expression of the reciprocal of this number in base 6 arithmetic yields further evidence for the surprising connection between the number 137 and Kabbalah first noted by Gershom Scholem in the 1950s. The results are interpreted in the hermeneutic tradition of the Pauli-Jung collaboration (relating, in particular, tothe World Clock dream) and Pythagorean mysticism. Some connections of the number $137$ to the golden ratio and the Fibonacci sequence are also explored.

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20

Efimov, S. P. "Formula for the fine structure constant." Russian Physics Journal 56, no. 7 (November 5, 2013): 740–44. http://dx.doi.org/10.1007/s11182-013-0093-6.

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21

Sherbon, Michael A. "Physical Mathematics and The Fine-Structure Constant." JOURNAL OF ADVANCES IN PHYSICS 14, no. 3 (October 3, 2018): 5758–64. http://dx.doi.org/10.24297/jap.v14i3.7760.

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Research into ancient physical structures, some having been known as the seven wonders of the ancient world, inspired new developments in the early history of mathematics. At the other end of this spectrum of inquiry the research is concerned with the minimum of observations from physical data as exemplified by Eddington's Principle. Current discussions of the interplay between physics and mathematics revive some of this early history of mathematics and offer insight into the fine-structure constant. Arthur Eddington's work leads to a new calculation of the inverse fine-structure constant giving the same approximate value as ancient geometry combined with the golden ratio structure of the hydrogen atom. The hyperbolic function suggested by Alfred Landé leads to another result, involving the Laplace limit of Kepler's equation, with the same approximate value and related to the aforementioned results. The accuracy of these results are consistent with the standard reference. Relationships between the four fundamental coupling constants are also found.

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22

Sherbon, Michael. "Fundamental physics and the fine-structure constant." International Journal of Physical Research 5, no. 2 (August 17, 2017): 46. http://dx.doi.org/10.14419/ijpr.v5i2.8084.

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From the exponential function of Euler’s equation to the geometry of a fundamental form, a calculation of the fine-structure constant and its relationship to the proton-electron mass ratio is given. Equations are found for the fundamental constants of the four forces of nature: electromagnetism, the weak force, the strong force and the force of gravitation. Symmetry principles are then associated with traditional physical measures.

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23

Sherbon, Michael A. "Fine-structure constant from Sommerfeld to Feynman." JOURNAL OF ADVANCES IN PHYSICS 16, no. 1 (August 30, 2019): 335–43. http://dx.doi.org/10.24297/jap.v16i1.8402.

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The fine-structure constant, which determines the strength of the electromagnetic interaction, is briefly reviewed beginning with its introduction by Arnold Sommerfeld and also includes the interest of Wolfgang Pauli, Paul Dirac, Richard Feynman and others. Sommerfeld was very much a Pythagorean and sometimes compared to Johannes Kepler. The archetypal Pythagorean triangle has long been known as a hiding place for the golden ratio. More recently, the quartic polynomial has also been found as a hiding place for the golden ratio. The Kepler triangle, with its golden ratio proportions, is also a Pythagorean triangle. Combining classical harmonic proportions derived from Kepler’s triangle with quartic equations determine an approximate value for the fine-structure constant that is the same as that found in our previous work with the golden ratio geometry of the hydrogen atom. These results make further progress toward an understanding of the golden ratio as the basis for the fine-structure constant.

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24

Anchordoqui, L., V. Barger, H. Goldberg, and D. Marfatia. "Phase transition in the fine structure constant." Physics Letters B 660, no. 5 (March 2008): 529–33. http://dx.doi.org/10.1016/j.physletb.2008.01.047.

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25

HOD, SHAHAR. "GRAVITATION, THERMODYNAMICS, AND THE FINE-STRUCTURE CONSTANT." International Journal of Modern Physics D 19, no. 14 (December 2010): 2319–23. http://dx.doi.org/10.1142/s0218271810018293.

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The dimensionless fine-structure constant α ≡ e2/ℏc ≃ 1/137.036 has fascinated many scientists since its introduction by Sommerfeld almost a century ago. Dirac and Feynman have conjectured that this important physical constant may be composed of fundamental mathematical quantities like π. In this essay we argue that, the interplay between gravity, quantum theory, and thermodynamics may shed much light on the origins of this mysterious constant. In particular, we show that a unified quantum theory of gravity may set a lower bound on the value of the fine-structure constant, α > ln 3/48π ≃ 1/137. 3.

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26

Chiba, T., and K. Kohri. "Supernova Cosmology and the Fine Structure Constant." Progress of Theoretical Physics 110, no. 2 (August 1, 2003): 195–99. http://dx.doi.org/10.1143/ptp.110.195.

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27

Moiseiwitsch, B. L. "Fine structure constant expansions for electron capture." Journal of Physics B: Atomic, Molecular and Optical Physics 25, no. 13 (July 14, 1992): 3015–20. http://dx.doi.org/10.1088/0953-4075/25/13/010.

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28

Kragh, Helge. "The fine-structure constant before quantum mechanics." European Journal of Physics 24, no. 2 (February 10, 2003): 169–73. http://dx.doi.org/10.1088/0143-0807/24/2/357.

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29

Bedford, Donald, and Peter Krumm. "Heisenberg indeterminacy and the fine structure constant." American Journal of Physics 72, no. 7 (July 2004): 969–70. http://dx.doi.org/10.1119/1.1646135.

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30

Kleppner, D. "PHYSICS: A More Precise Fine Structure Constant." Science 313, no. 5786 (July 28, 2006): 448–49. http://dx.doi.org/10.1126/science.1131834.

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31

Sandora, McCullen. "The fine structure constant and habitable planets." Journal of Cosmology and Astroparticle Physics 2016, no. 08 (August 22, 2016): 048. http://dx.doi.org/10.1088/1475-7516/2016/08/048.

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32

Kinoshita, Toichiro. "Fine-Structure Constant Derived from Quantum Electrodynamics." Metrologia 25, no. 4 (January 1, 1988): 233–37. http://dx.doi.org/10.1088/0026-1394/25/4/006.

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33

De la Peña, L., and A. M. Cetto. "A formula for the fine-structure constant." Il Nuovo Cimento B 104, no. 2 (August 1989): 239–41. http://dx.doi.org/10.1007/bf02906320.

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34

Sannikov-Proskuryakov, S. S. "Theory of the sommerfeld fine-structure constant." Russian Physics Journal 40, no. 10 (October 1997): 982–84. http://dx.doi.org/10.1007/bf02514521.

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35

Aspden, H. "Theoretical evaluation of the fine structure constant." Physics Letters A 110, no. 3 (July 1985): 113–15. http://dx.doi.org/10.1016/0375-9601(85)90754-6.

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36

Crosignani, Bruno, and Paolo Di Porto. "Asymmetric linear oscillator and fine-structure constant." Physics Letters A 127, no. 8-9 (March 1988): 395–98. http://dx.doi.org/10.1016/0375-9601(88)90202-2.

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37

Tuninskii, V. S. "Josephson values of the fine-structure constant." Measurement Techniques 28, no. 2 (February 1985): 179–83. http://dx.doi.org/10.1007/bf00862415.

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38

Sherbon, Michael A. "Golden Ratio Geometry and the Fine-Structure Constant." JOURNAL OF ADVANCES IN PHYSICS 16, no. 1 (October 22, 2019): 362–68. http://dx.doi.org/10.24297/jap.v16i1.8469.

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The golden ratio is found to be related to the fine-structure constant, which determines the strength of the electromagnetic interaction. The golden ratio and classical harmonic proportions with quartic equations give an approximate value for the inverse fine-structure constant the same as that discovered previously in the geometry of the hydrogen atom. With the former golden ratio results, relationships are also shown between the four fundamental forces of nature: electromagnetism, the weak force, the strong force, and the force of gravitation.

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39

Casey, Terence W. "Prime Number Theory and the Fine‐Structure Constant." Physics Essays 5, no. 3 (September 1992): 345–46. http://dx.doi.org/10.4006/1.3028992.

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40

Eichhorn, Astrid, Aaron Held, and Christof Wetterich. "Quantum-gravity predictions for the fine-structure constant." Physics Letters B 782 (July 2018): 198–201. http://dx.doi.org/10.1016/j.physletb.2018.05.016.

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41

Gross, David J. "On the Calculation of the Fine‐Structure Constant." Physics Today 42, no. 12 (December 1989): 9–11. http://dx.doi.org/10.1063/1.2811237.

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42

Wei, Hao, Xiao-Peng Ma, and Hao-Yu Qi. "f(T) theories and varying fine structure constant." Physics Letters B 703, no. 1 (September 2011): 74–80. http://dx.doi.org/10.1016/j.physletb.2011.07.042.

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43

Menshikov, L. I. "A model estimate of the fine structure constant." Physics of Particles and Nuclei Letters 6, no. 4 (July 2009): 334–36. http://dx.doi.org/10.1134/s1547477109040086.

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44

Yu, Chenghui, Weicheng Zhong, Brian Estey, Joyce Kwan, Richard H. Parker, and Holger Müller. "Atom‐Interferometry Measurement of the Fine Structure Constant." Annalen der Physik 531, no. 5 (February 21, 2019): 1800346. http://dx.doi.org/10.1002/andp.201800346.

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45

Jin, Wei-Guo, Takashi Wakui, Tatsuya Minowa, and Hidetsugu Katsuragawa. "Student Experiment for Determining the Fine Structure Constant." Journal of the Physical Society of Japan 67, no. 8 (August 15, 1998): 2962–63. http://dx.doi.org/10.1143/jpsj.67.2962.

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46

Das, Saurya, and Gabor Kunstatter. "Varying fine structure constant and black-hole physics." Classical and Quantum Gravity 20, no. 11 (May 1, 2003): 2015–23. http://dx.doi.org/10.1088/0264-9381/20/11/304.

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47

Sloan, David. "Loop quantum cosmology and the fine structure constant." Classical and Quantum Gravity 31, no. 2 (December 5, 2013): 025014. http://dx.doi.org/10.1088/0264-9381/31/2/025014.

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48

Yan, Zong-Chao. "Atomic physics determination of the fine structure constant." National Science Review 7, no. 12 (November 15, 2019): 1797–98. http://dx.doi.org/10.1093/nsr/nwz186.

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49

Nair, R. R., P. Blake, A. N. Grigorenko, K. S. Novoselov, T. J. Booth, T. Stauber, N. M. R. Peres, and A. K. Geim. "Fine Structure Constant Defines Visual Transparency of Graphene." Science 320, no. 5881 (June 6, 2008): 1308. http://dx.doi.org/10.1126/science.1156965.

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50

Carazza, B., and G. P. Guidetti. "The Casimir effect and the fine structure constant." Foundations of Physics Letters 2, no. 3 (June 1989): 245–50. http://dx.doi.org/10.1007/bf00692670.

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