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In this study, we aim to explore the effect of chirality on the phasebehavior of active helical particles driven by two-temperature scalar activity.We first calculate the equation of state of soft helical particles of variousintrinsic chiralities using molecular dynamics (MD) simulation. In equilibrium,the emergence of various liquid crystal (LC) phases such as nematic (N),cholesteric ($N_{c}^{*}$), smectic (Sm), as well as crystal (K), cruciallydepends on the presence of the walls, which induce homeotropic alignment. Next,we introduce activity through the two-temperature model: keep increasing thetemperature of half of the helical particles (labeled as 'hot' particles) whilemaintaining the temperature of the other half at a lower value (labeled as'cold' particles). Starting from a homogeneous isotropic (I) phase, we find theemergence of 2-TIPS: two temperature-induced phase separations between the hotand cold particles. We also observe the cold particles undergo an orderingtransition to various LC phases even in the absence of a wall. This observationreveals that the hot-cold interface in the active system plays the role of awall in the equilibrium system by inducing an alignment direction for the coldparticles. However, in the case of a cholesteric phase, we observe activitydestabilizes the $N_{c}^{*}$ phase by inducing smectic ordering in the coldzone while isotropic structure in the hot zone. The smectic ordering in thecold zone eventually transforms to a chiral crystal phase at high enoughactivity.

Stability of chiral crystal phase and breakdown of cholesteric phase in mixtures of active-passive chiral rods