Different Faces of Generalized Holographic Dark Energy

In the formalism of generalized holographic dark energy (HDE), cut-off is to depend upon LIR=LIRLp,L?p,L¨p,?,Lf,L?f,?,a with Lp and Lf being particle horizon future horizon, respectively (moreover, a scale factor Universe). Based on such formalism, in present paper, we show that wide class (DE) models can be regarded as different candidates for HDE family, respective cut-offs. This thought symmetry between DE models. this regard, considered several entropic models—such Tsallis DE, Rényi Sharma–Mittal DE—and found they are indeed equivalent HDE. Such equivalence extended scenario where exponents entropy functions allowed vary expansion Universe. Besides models, correspondence was also established quintessence Ricci model. all above cases, effective equation state (EoS) parameter corresponding density determined, by which various further confirmed. The cut-offs were determined two ways: (1) terms its derivatives, (2) derivatives.