Tachyonic Teleparallel Dark Energy in Phase Space

Table 1

Location and condition for existence of the critical points and the corresponding values of the dark energy density parameter Ω_DE, of dark energy equation of state parameter 𝜔_DE, of the total equation of state parameter 𝜔_tot, and of the deceleration parameter 𝑞.

Label	Location of (𝑥𝑐,𝑦𝑐,𝑧𝑐,𝑢𝑐)	Exists for	ΩDE	𝜔DE	𝜔tot	𝑞
𝐴	√22√,0,22,𝑢𝑐	𝜉<0	1	−1	−1	−1
𝐵	√22√,0,−22,𝑢𝑐	𝜉<0	1	−1	−1	−1
𝐶	−√22√,0,22,𝑢𝑐	𝜉<0	1	−1	−1	−1
𝐷	−√22√,0,−22,𝑢𝑐	𝜉<0	1	−1	−1	−1
ℒ1 (critical line)	1+𝑧^2𝑐sgn(𝜉),0,𝑧𝑐,0	All 𝜉	1	−1	−1	−1
ℒ2 (critical line)	−1+𝑧^2𝑐sgn(𝜉),0,𝑧𝑐,0	All 𝜉	1	−1	−1	−1