Meta-stable States in Quark-Gluon Plasma

We study the meta-stable states in high temperature phase of QCD characterised by nonzero expectation values for the imaginary part of the Polyakov loop. We consider $N_f= 2, 3$ dynamical staggered quarks, and carry out simulations at various values of the coupling $\beta$ to observe these states. In particular, we find the value of the coupling ($\beta_m$) above which the meta-stable states appear. The resulting value of $\beta_m$ corresponds to temperature $T_m \gtrsim 750$MeV for $N_f=2$.Comment: This version includes new simulations carried out on bigger lattices, particularly on $32^3 x 4$ and $32^3 x 6

A Review on Light Trapping Capacities of Different Photovoltaic Cells

As human beings mostly depend on fossil fuels for all of their daily energy USAges. But due to the exponential increase in the graph of the price of the fossil fuels, as well as the gradually decreasing graph of their availability on a large scale, makes the people to divert their attention towards a new source of sustainable energy which could fulfil their daily energy needs reliably, efficiently as well as cost-effectively. Among all renewable sources, the solar energy is an energy source whose availability is free and in an enormous amount; but the main thing is that steps should be undertaken in order to harness the solar energy properly. The following contents in the paper are based on the ways that how solar energy could be harnessed profitably