REVIEW 6 cited by
Thermodynamics of Lorentzian Taub-NUT spacetimes
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
Thermodynamics of Lorentzian Taub-NUT spacetimes
read the original abstract
The thermodynamics of the Taub-NUT solution has been predominantly studied in the Euclidean sector, upon imposing the condition for the absence of Misner strings. Such thermodynamics is quite exceptional: the periodicity of the Euclidean time is restricted and thence the NUT charge cannot be independently varied, the entropy is not equal to a quarter of the area, and the thermodynamic volume can be negative. In this paper we revisit this paradigm and study the thermodynamics of the Lorentzian Taub-NUT solution, maintaining (as recently shown relatively harmless) Misner strings. We argue that in order to formulate a full cohomogeneity first law where the NUT parameter can be independently varied, it is natural to introduce a new charge together with its conjugate quantity. We consider two scenarios: one in which the entropy is given by the Lorentzian version of the Noether charge, the other in which the entropy is given by the standard Bekenstein--Hawking area law. In both cases consistent thermodynamics with positive thermodynamic volume can be formulated.
Forward citations
Cited by 6 Pith papers
-
Quasi-topological gravity for 4-dimensional Taub-NUT, near-horizon extreme Kerr, and swirling symmetries
Unique quasi-topological theories with first-order equations are found for Taub-NUT, NHEK, swirling and related 4D symmetric metrics, enabling closed-form solutions and regular black holes from high-order curvature co...
-
Memory effect from the scattering of Taub-NUT black holes
Soft theorems yield a gauge-invariant nutty soft factor and the associated memory tensor for Kerr-Taub-NUT scattering, with magnetic components and directional divergences absent in electromagnetism.
-
Multihair thermodynamics of Kerr-Newman-NUT-AdS$_4$ spacetimes
Derives a Christodoulou-Ruffini-type squared-mass formula for Kerr-Newman-NUT-AdS4 using secondary NUT hairs J_n and N, then verifies the first law and Smarr relation by differentiation.
-
Gravielectric and gravimagnetic fluxes in nutty black holes
Misner strings carry singular gravielectric and gravimagnetic fluxes that connect horizons to infinity, explaining negative Komar masses as incoming field lines and showing the strings are massless empty tubes.
-
Charged nutty black holes are hairy
Misner strings accompanying charged nutty black holes carry effective electric and magnetic charges via singular field flows with nonzero divergence, creating observable short-range electromagnetic hair.
-
Equatorial Circular Motion of Charged Test Particles in a Weakly Magnetized Taub--NUT Background
Derives circularity and marginal stability conditions for charged particles in weakly magnetized Taub-NUT spacetime and finds that magnetic field strength monotonically decreases the ISCO radius with charge-dependent ...
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.