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Books > Science & Mathematics > Physics > Quantum physics (quantum mechanics)
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Quantum Field Theory (Hardcover)
Loot Price: R1,726
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Quantum Field Theory (Hardcover)
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The matter in our universe is composed of electrons and quarks. The
dynamics of electrons and quarks is described by the Standard Model
of particle physics, which is based on quantum field theories. The
general framework of quantum field theories is described in this
book. After the classical mechanics and the relativistic mechanics
the details of classical scalar fields, of electrodynamics and of
quantum mechanics are discussed. Then the quantization of scalar
fields, of spinor fields and of vector fields is described.The
basic interactions are described by gauge theories. These theories
are discussed in detail, in particular the gauge theories of
quantum electrodynamics (QED) and of quantum chromodynamics (QCD),
based on the gauge group SU(3). In both theories the gauge bosons,
the photon and the gluons, have no mass. The gauge theory of the
electroweak interactions, based on the gauge group SU(2) x U(1),
describes both the electromagnetic and the weak interactions. The
weak force is generated by the exchange of the weak bosons. They
have a large mass, and one believes that these masses are generated
by a spontaneous breaking of the gauge symmetry.It might be that
the strong and the electroweak interactions are unified at very
high energies ('Grand Unification'). The gauge groups SU(3) and
SU(2) x U(1) must be subgroups of a big gauge group, describing the
Grand Unification. Two such theories are discussed, based on the
gauge groups SU(5) and SO(10).
General
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