探索经典暗能量的参数约束：伪南武戈德斯通玻色子模型
Exploring Parameter Constraints on Quintessential Dark Energy: the Pseudo-Nambu Goldstone Boson Model
摘要：
我们分析了未来暗能量实验对伪南武-戈德斯通玻色子（PNGB）本质的约束能力。根据暗能量工作组的方法，我们预测了三个实验"阶段“的数据：第二阶段代表与暗能量相关的正在进行的项目;第三阶段是中等规模的实验;第四阶段包括更大的项目。我们使用马尔可夫链蒙特卡罗分析来确定PNGB模型参数的后验概率分布。利用$ΛCDM$宇宙学产生的数据，我们发现，PNGB精髓上的不同数据阶段的相对功率大致相当于暗能量的$w_0-w_a$参数化的DETF结果。我们还生成数据的基础上PNGB宇宙学模型是一致的$ΛCDM$基准模型在第2阶段。我们发现，基于PNGB基准模型的第4阶段数据将至少排除$3 σ$的宇宙学常数。
英文摘要：
We analyze the constraining power of future dark energy experiments for Pseudo-Nambu Goldstone Boson (PNGB) quintessence. Following the Dark Energy Task Force methodology, we forecast data for three experimental ``stages'': Stage 2 represents in-progress projects relevant to dark energy; Stage 3 refers to medium sized experiments; Stage 4 comprises larger projects. We determine the posterior probability distribution for the parameters of the PNGB model using Markov Chain Monte Carlo analysis. Utilizing data generated on a $ΛCDM$ cosmology, we find that the relative power of the different data stages on PNGB quintessence is roughly comparable to the DETF results for the $w_0-w_a$ parametrization of dark energy. We also generate data based on a PNGB cosmological model that is consistent with a $ΛCDM$ fiducial model at Stage 2. We find that Stage 4 data based on this PNGB fiducial model will rule out a cosmological constant by at least $3 σ$.
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