مشخصات پژوهش

عنوان	Traces of Quantum Gravity Effects at Late-time Cosmological Dynamics via Distance Measures
نوع پژوهش	مقاله چاپ شده
کلیدواژه‌ها	There is no keyword in this paper.
چکیده	Inspired by the entropy–area relation of black hole thermodynamics, we study the thermodynamics of the cosmological apparent horizon in a spatially flat Friedmann–Robertson–Walker universe in the framework of an extended uncertainty principle (EUP). The adopted EUP naturally admits a minimal measurable momentum (equivalently a maximal measurable length), as an infrared cutoff in the theory. We derive the modified Friedmann equations in this setup and explore some predictions of these equations for the late-time universe via distance measures. We show that in this framework it is possible to realize the late-time cosmic speedup and transition to the phantom phase of the equation-of-state parameter of the effective cosmic fluid without recourse to any dark energy component or modified gravity. Inspection of various distance measures in this framework shows that an EUP with a negative deformation parameter suffices for the interpretation of the late-time asymptotically de Sitter universe with standard nonrelativistic matter.
پژوهشگران	کوروش نوذری (نفر سوم)، نرگس رشیدی تلوکی (نفر دوم)، مریم روشن (نفر اول)