One antimatter --- two possible thermodynamics

Abstract

Conventional thermodynamics, which is formulated for our world populated by radiation and matter, can be extended to describe physical properties of antimatter in two mutually exclusive ways: CP-invariant or CPT-invariant. Here we refer to invariance of physical laws under charge (C), parity (P) and time reversal (T) transformations. While in quantum field theory CPT invariance is a theorem confirmed by experiments, the symmetry principles applied to macroscopic phenomena or to the whole of the Universe represent only hypotheses. Since both versions of thermodynamics are different only in their treatment of antimatter, but are the same in describing our world dominated by matter, making a clear experimentally justified choice between CP invariance and CPT invariance in context of thermodynamics is not possible at present. This work investigates the comparative properties of the CP- and CPT-invariant extensions of thermodynamics (focusing on the latter, which is less conventional than the former) and examines conditions under which these extensions can be experimentally tested.

20 pages, 4 figures. arXiv admin note: text overlap with arXiv:1209.1982

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• Observation of CP violation in the B^0 meson system
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Cited by in corpus (7)

• Symmetric and antisymmetric forms of the Pauli master equation (for interaction of matter and antimatter quantum states)
• Kinetics of interactions of matter, antimatter and radiation consistent with antisymmetric (CPT-invariant) thermodynamics
• The direction of time and Boltzmann's time hypothesis
• Primordial black holes from collapsing antimatter
• Two Types of Temporal Symmetry in the Laws of Nature
• Decoherence, Perturbations and Symmetry in Lindblad Dynamics -- Implications for Diffractive Dissociation
• On the effect of decoherence on quantum tunnelling