## Course of theoretical physics: Electrodynemics of continuous media |

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Page 43

We write the local field as E = E +6E, and the local permittivity as E + 62, where Z

:=(1/I/)_ledV (9.2) is obtained by

induction is I3 = (E +aŁ)(i:+5E) = EE+6s6E. (9.3) since the mean values of 61-:

and ...

We write the local field as E = E +6E, and the local permittivity as E + 62, where Z

:=(1/I/)_ledV (9.2) is obtained by

**averaging**over the volume. Then the meaninduction is I3 = (E +aŁ)(i:+5E) = EE+6s6E. (9.3) since the mean values of 61-:

and ...

Page 414

scattering must be taken to be those resulting from the first

should be noted that in the quantum treatment one can of course refer to

quantity itself.

scattering must be taken to be those resulting from the first

**averaging**only. Itshould be noted that in the quantum treatment one can of course refer to

**averaging**over a volume only for an operator of a physical quantity, not for thequantity itself.

Page 450

The

over the wave functions of the stationary states and then over the Gibbs

distribution. To carry out this

mechanical ...

The

**averaging**in (127.4) is to be taken as a complete statistical**averaging**, i.e.over the wave functions of the stationary states and then over the Gibbs

distribution. To carry out this

**averaging**, we have to regard u as a quantum-mechanical ...

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angle anisotropy anisotropy energy antiferromagnetic atoms axes axis body boundary conditions calculation charge circuit coefﬁcient coefficients components conductor constant coordinates corresponding cross-section crystal Curie point curl H deﬁned deﬁnition denote dependence derivatives determined dielectric diffraction direction discontinuity dissipation domains electric ﬁeld electromagnetic ﬁeld electrons ellipsoid energy ﬂux expression external ﬁeld external magnetic ﬁeld ferroelectric ferromagnet ﬁeld H ﬁnd ﬁnite ﬁrst ﬁrst term ﬂow ﬂuctuations ﬂuid formula free energy frequency function given gives grad Hence incident induction inﬁnite integral isotropic Landau theory layer linear magnetic ﬁeld magnetohydrodynamics magnetostriction magnitude medium normal obtain optical particle permittivity perpendicular perturbation phase plane polarization PROBLEM propagated properties pyroelectric quantities reﬂection refraction relation respect result rotation satisﬁed scattering shock wave signiﬁcance solution sphere superconducting surface symmetry tangential temperature tensor theory thermodynamic potential transition uniaxial upper half-plane values variable velocity volume wave vector z-axis zero