标题： 暗能量充满的宇宙中对数缓变和中间场景的动力学 显示英文标题

标题： Dynamics of Logamediate and Intermediate Scenarios in the Dark Energy Filled Universe

摘要： 我们考虑了一个两组分混合物的模型，即快子场与具有barotropic流体的Chaplygin气体的混合物。在它们没有相互作用的情况下，各自保留自身的性质。让我们考虑barotropic流体和快子流体之间的能量流动。在两种情况下，我们都找到了快子场和快子势的精确解，并表明快子势表现出渐近行为。我们通过引入耦合项考虑了这两种流体之间的相互作用。最后，我们考虑了一个三组分混合物的模型，即具有或不具有相互作用的快子场、Chaplygin气体和barotropic流体的混合物。耦合函数随时间衰减，表明初始阶段有强烈的能量流动，而在后期阶段则为弱稳定相互作用。为了保持近期加速观测的支持，我们考虑了宇宙演化的两种特定形式：(i) 对数中介场景和(ii) 中介场景。我们在整个宇宙演化过程中，在存在和不存在相互作用的情况下，检查了这两种情景下最近发展的状态参量和慢滚参数的性质。 显示英文摘要

摘要： We have considered a model of two component mixture i.e., mixture of Chaplygin gas and barotropic fluid with tachyonic field. In the case, when they have no interaction then both of them retain their own properties. Let us consider an energy flow between barotropic and tachyonic fluids. In both the cases we find the exact solutions for the tachyonic field and the tachyonic potential and show that the tachyonic potential follows the asymptotic behavior. We have considered an interaction between these two fluids by introducing a coupling term. Finally, we have considered a model of three component mixture i.e., mixture of tachyonic field, Chaplygin gas and barotropic fluid with or without interaction. The coupling functions decays with time indicating a strong energy flow at the initial period and weak stable interaction at later stage. To keep the observational support of recent acceleration we have considered two particular forms (i) Logamediate Scenario and (ii) Intermediate Scenario, of evolution of the Universe. We have examined the natures of the recent developed statefinder parameters and slow-roll parameters in both scenarios with and without interactions in whole evolution of the universe.