Toward the correspondence between Q-clouds and sphalerons
Non-linear classical equations of motion may admit degenerate solutions at fixed charges. Whereas the solutions with lower energies are classically stable, those with larger energies are unstable and are referred to as Q-clouds. We consider a theory in which a homogeneous charged condensate is class...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2015-07-01
|
| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S037026931500430X |
| _version_ | 1811303506253971456 |
|---|---|
| author | E. Nugaev A. Shkerin |
| author_facet | E. Nugaev A. Shkerin |
| author_sort | E. Nugaev |
| collection | DOAJ |
| description | Non-linear classical equations of motion may admit degenerate solutions at fixed charges. Whereas the solutions with lower energies are classically stable, those with larger energies are unstable and are referred to as Q-clouds. We consider a theory in which a homogeneous charged condensate is classically stable and argue that Q-clouds correspond to sphalerons between the stable Q-balls and the condensate. For a model with an analytical solution, we present the Arrhenius formula for the quantum production of Q-balls from a condensate at high temperatures. |
| first_indexed | 2024-04-13T07:49:07Z |
| format | Article |
| id | doaj.art-75360c7b99f748a58912b7933bbffeb6 |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-04-13T07:49:07Z |
| publishDate | 2015-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-75360c7b99f748a58912b7933bbffeb62022-12-22T02:55:36ZengElsevierPhysics Letters B0370-26931873-24452015-07-01747C28729110.1016/j.physletb.2015.06.008Toward the correspondence between Q-clouds and sphaleronsE. Nugaev0A. Shkerin1Institute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7a, 117312, Moscow, RussiaInstitute for Nuclear Research of the Russian Academy of Sciences, 60th October Anniversary prospect 7a, 117312, Moscow, RussiaNon-linear classical equations of motion may admit degenerate solutions at fixed charges. Whereas the solutions with lower energies are classically stable, those with larger energies are unstable and are referred to as Q-clouds. We consider a theory in which a homogeneous charged condensate is classically stable and argue that Q-clouds correspond to sphalerons between the stable Q-balls and the condensate. For a model with an analytical solution, we present the Arrhenius formula for the quantum production of Q-balls from a condensate at high temperatures.http://www.sciencedirect.com/science/article/pii/S037026931500430X |
| spellingShingle | E. Nugaev A. Shkerin Toward the correspondence between Q-clouds and sphalerons Physics Letters B |
| title | Toward the correspondence between Q-clouds and sphalerons |
| title_full | Toward the correspondence between Q-clouds and sphalerons |
| title_fullStr | Toward the correspondence between Q-clouds and sphalerons |
| title_full_unstemmed | Toward the correspondence between Q-clouds and sphalerons |
| title_short | Toward the correspondence between Q-clouds and sphalerons |
| title_sort | toward the correspondence between q clouds and sphalerons |
| url | http://www.sciencedirect.com/science/article/pii/S037026931500430X |
| work_keys_str_mv | AT enugaev towardthecorrespondencebetweenqcloudsandsphalerons AT ashkerin towardthecorrespondencebetweenqcloudsandsphalerons |