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Rotating quantum states
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Rotating quantum states
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We revisit the definition of rotating thermal states for scalar and fermion fields in unbounded Minkowski space-time. For scalar fields such states are ill-defined everywhere, but for fermion fields an appropriate definition of the vacuum gives thermal states regular inside the speed-of-light surface. For a massless fermion field, we derive analytic expressions for the thermal expectation values of the fermion current and stress-energy tensor. These expressions may provide qualitative insights into the behaviour of thermal rotating states on more complex space-time geometries.
Forward citations
Cited by 4 Pith papers
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QFT on rotating boxes at finite temperature
Rotating thermal boxes can be represented by path integrals on flat compact manifolds T^4/Z_k with rotated boundary conditions, allowing only discrete imaginary angular velocities.
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Weak Bose-Einstein condensation in a rigidly rotating magnetized charged Bose gas
Rigid rotation does not restore a sharp BEC transition in a magnetized charged Bose gas; it only changes thermodynamics, and can flip the magnetic response toward paramagnetism.
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Thermodynamics of rotating fermions
A local pressure for rotating massless fermions is proposed that satisfies both the Euler relation and the thermodynamic differential relations, resolving a known spin-hydrodynamics tension.
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Linear sigma model with quarks and Polyakov loop in rotation: phase diagrams, Tolman-Ehrenfest law and mechanical properties
Rotation lowers critical temperatures for chiral and deconfinement transitions in the Polyakov linear sigma model under causality constraints, with mechanical properties computed in the homogeneous limit.
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