Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy
We reveal a novel aspect of scale-invariant actions that allow matter to couple with a dilaton field: The dynamics of the dilaton can induce variations in the Planck constant ħ and speed of light c. Our mechanism for generating variable ħ and c in curved spacetimes via the dilaton offers a viable al...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-03-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269325001170 |
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| _version_ | 1850028228592271360 |
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| author | Hoang Ky Nguyen |
| author_facet | Hoang Ky Nguyen |
| author_sort | Hoang Ky Nguyen |
| collection | DOAJ |
| description | We reveal a novel aspect of scale-invariant actions that allow matter to couple with a dilaton field: The dynamics of the dilaton can induce variations in the Planck constant ħ and speed of light c. Our mechanism for generating variable ħ and c in curved spacetimes via the dilaton offers a viable alternative account for late-time cosmic acceleration, bypassing the need for dark energy. |
| format | Article |
| id | doaj-art-ebce3a3e27ca443dbf95556b3fcaddf0 |
| institution | DOAJ |
| issn | 0370-2693 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj-art-ebce3a3e27ca443dbf95556b3fcaddf02025-08-20T02:59:53ZengElsevierPhysics Letters B0370-26932025-03-0186213935710.1016/j.physletb.2025.139357Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energyHoang Ky Nguyen0Department of Physics, Babeş-Bolyai University, Cluj-Napoca 400084, Romania; Institute for Interdisciplinary Research in Science and Education, ICISE, Quy Nhon 55121, Vietnam; Correspondence to: Department of Physics, Babeş-Bolyai University, Cluj-Napoca 400084, Romania.We reveal a novel aspect of scale-invariant actions that allow matter to couple with a dilaton field: The dynamics of the dilaton can induce variations in the Planck constant ħ and speed of light c. Our mechanism for generating variable ħ and c in curved spacetimes via the dilaton offers a viable alternative account for late-time cosmic acceleration, bypassing the need for dark energy.http://www.sciencedirect.com/science/article/pii/S0370269325001170 |
| spellingShingle | Hoang Ky Nguyen Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy Physics Letters B |
| title | Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy |
| title_full | Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy |
| title_fullStr | Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy |
| title_full_unstemmed | Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy |
| title_short | Dilaton-induced variations in Planck constant and speed of light: An alternative to dark energy |
| title_sort | dilaton induced variations in planck constant and speed of light an alternative to dark energy |
| url | http://www.sciencedirect.com/science/article/pii/S0370269325001170 |
| work_keys_str_mv | AT hoangkynguyen dilatoninducedvariationsinplanckconstantandspeedoflightanalternativetodarkenergy |