Quark number susceptibility at finite density and low temperature
Abstract
We study the quark number susceptibility in SU(2) lattice gauge theory with two Wilson quark flavours at non-zero chemical potential and low temperature. We present some technical aspects of the issue and numerical results obtained at different lattices and different parameters. We discuss what this observable can teach us about the phase diagram of the model and in particular about the relation between susceptibility and Polyakov loop
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