We consider a dark energy scenario driven by a scalar field \(\phi \) with a pseudo-Nambu–Goldstone boson (pNGB) type potential \(V(\phi )=\mu ^4 \left( 1+ \mathrm{cos}(\phi /f) \right) \). The pNGB originates out of breaking of spontaneous symmetry at a scale f close to Planck mass \(M_\mathrm{{pl}}\). We consider two cases namely the quintessence dark energy model with pNGB potential and the other, where the standard pNGB action is modified by the terms related to Slotheon cosmology. We demonstrate that for this pNGB potential, high-f problem is better addressed when the interaction between dark matter and dark energy is taken into account and that Slotheon dark energy scenario works even better over quintessence in this respect. To this end, a mass limit for dark matter is also estimated.

我们考虑由标量场\（\ phi \）驱动的暗能量场景，其中具有伪纳姆布-戈德斯通玻色子（pNGB）型势\（V（\ phi）= \ mu ^ 4 \ left（1+ \ mathrm { cos}（\ phi / f）\ right）\）。pNGB源自自发对称性的破坏，其尺度f接近普朗克质量\（M_ \ mathrm {{pl}} \）。我们考虑两种情况，一种是具有pNGB势的典型暗能量模型，另一种是通过与Slotheon宇宙学相关的术语修改了标准pNGB动作。我们证明，对于这种pNGB潜力，高f当考虑到暗物质和暗能量之间的相互作用，并且在这方面，Slotheon暗能量场景比典型情况下的效果更好，则可以更好地解决该问题。为此，还估计了暗物质的质量极限。