The Wigner–Seitz radius, denoted <math>r_s</math>, is a parameter used frequently in condensed matter physics to describe the density of a system. The formula for 3-D system: <math>\frac{1}{n} = \frac{4}{3} \pi r_s^3</math>. Solving for <math>r_s</math> we obtain <math>r_s = \left(\frac{3}{4\pi n}\right)^{1/3}</math>, where <math>n = \frac{N}{V}</math>.

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  • The Wigner–Seitz radius, denoted <math>r_s</math>, is a parameter used frequently in condensed matter physics to describe the density of a system. The formula for 3-D system: <math>\frac{1}{n} = \frac{4}{3} \pi r_s^3</math>. Solving for <math>r_s</math> we obtain <math>r_s = \left(\frac{3}{4\pi n}\right)^{1/3}</math>, where <math>n = \frac{N}{V}</math>. N: number of valence electron V: volume This parameter is normally reported in atomic units. For a non-interacting system, the average separation between two particles will be <math>2 r_s</math>.
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  • The Wigner–Seitz radius, denoted <math>r_s</math>, is a parameter used frequently in condensed matter physics to describe the density of a system. The formula for 3-D system: <math>\frac{1}{n} = \frac{4}{3} \pi r_s^3</math>. Solving for <math>r_s</math> we obtain <math>r_s = \left(\frac{3}{4\pi n}\right)^{1/3}</math>, where <math>n = \frac{N}{V}</math>.
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  • Wigner-Seitz radius
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