# Propagating q-field and q-ball solution

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**Propagating q-field and q-ball solution.** / Klinkhamer, F.R.; Volovik, G. E.

Research output: Contribution to journal › Article › Scientific › peer-review

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*MODERN PHYSICS LETTERS A*, vol. 32, no. 18, 1750103, pp. 1-13. https://doi.org/10.1142/S0217732317501036

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*MODERN PHYSICS LETTERS A*,

*32*(18), 1-13. [1750103]. https://doi.org/10.1142/S0217732317501036

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TY - JOUR

T1 - Propagating q-field and q-ball solution

AU - Klinkhamer, F.R.

AU - Volovik, G. E.

N1 - | openaire: EC/H2020/694248/EU//TOPVAC

PY - 2017

Y1 - 2017

N2 - One possible solution of the cosmological constant problem involves a so-called q-field, which self-adjusts so as to give a vanishing gravitating vacuum energy density (cosmological constant) in equilibrium. We show that this q-field can manifest itself in other ways. Specifically, we establish a propagating mode (q-wave) in the nontrivial vacuum and find a particular soliton-type solution in flat spacetime, which we call a q-ball by analogy with the well-known Q-ball solution. Both q-waves and q-balls are expected to play a role for the equilibration of the q-field in the very early universe.

AB - One possible solution of the cosmological constant problem involves a so-called q-field, which self-adjusts so as to give a vanishing gravitating vacuum energy density (cosmological constant) in equilibrium. We show that this q-field can manifest itself in other ways. Specifically, we establish a propagating mode (q-wave) in the nontrivial vacuum and find a particular soliton-type solution in flat spacetime, which we call a q-ball by analogy with the well-known Q-ball solution. Both q-waves and q-balls are expected to play a role for the equilibration of the q-field in the very early universe.

KW - cosmological constant

KW - dark energy

KW - Relativistic wave equations

KW - solitons

UR - http://www.scopus.com/inward/record.url?scp=85019865325&partnerID=8YFLogxK

U2 - 10.1142/S0217732317501036

DO - 10.1142/S0217732317501036

M3 - Article

VL - 32

SP - 1

EP - 13

JO - MODERN PHYSICS LETTERS A

JF - MODERN PHYSICS LETTERS A

SN - 0217-7323

IS - 18

M1 - 1750103

ER -

ID: 13652575