Acoustics of tachyon Fermi gas

Journal Article · Wed Jun 15 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.124013· OSTI ID:21502729

Trojan, Ernst; Vlasov, George V ^[1]

---

1. Moscow Institute of Physics and Technology PO Box 3, Moscow, 125080 (Russian Federation)

We consider a Fermi gas of free tachyons as a continuous medium and find whether it satisfies the causality condition. There is no stable tachyon matter with the particle density below critical value n{sub T} and the Fermi momentum k{sub F}<{radical}((3/2))m that depends on the tachyon mass m. The pressure P and energy density E cannot be arbitrary small, but the situation P>E is not forbidden. Existence of shock waves in tachyon gas is also discussed. At low density n{sub T}<n<3.45n{sub T} the tachyon matter remains stable but no shock wave survives.

• OSTI ID: 21502729
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 12; Other Information: DOI: 10.1103/PhysRevD.83.124013; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACOUSTICS
CAUSALITY
DENSITY
ENERGY DENSITY
FERMI GAS
MASS
PARTICLES
SHOCK WAVES
SIMULATION
TACHYONS
ELEMENTARY PARTICLES
PHYSICAL PROPERTIES
POSTULATED PARTICLES