Published 2023 | Version v1
Journal article Metadata-only

Scalar field as a perfect fluid: thermodynamics of minimally coupled scalars and Einstein frame scalar-tensor gravity

Creators

  • 1. Department of Physics and Astronomy, Bishop's University, 2600 College Street, J1M 1Z7, Sherbrooke, QC (Canada)
  • 2. Institute for Theoretical Physics, Heidelberg University, Philosophenweg 16, 69120, Heidelberg (Germany)
  • 3. Max Planck Institute for Gravitational Physics (Albert Einstein Institute), Callinstraße 38, 30167, Hannover (Germany)
  • 4. Institute for Theoretical Physics, ETH Zurich, Wolfgang-Pauli-Strasse 27, 8093, Zurich (Switzerland)

Description

We revisit the analogy between a minimally coupled scalar field in general relativity and a perfect fluid, correcting previous identifications of effective temperature and chemical potential. This provides a useful complementary picture for the first-order thermodynamics of scalar-tensor gravity, paving the way for the Einstein frame formulation (which eluded previous attempts) and raises interesting questions to further develop the analogy.

Availability note (English)

Available from: http://dx.doi.org/10.1140/epjc/s10052-023-11186-7

Additional details

Identifiers

DOI
10.1140/epjc/s10052-023-11186-7;

Publishing Information

Journal Title
European Physical Journal. C, Particles and Fields (Online)
Journal Volume
83
Journal Issue
1
Journal Page Range
vp.
ISSN
1434-6052
CODEN
EPCFFB

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
54025860
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Descriptors DEI
GENERAL RELATIVITY THEORY; GRAVITATION; IDEAL FLOW; SCALAR FIELDS; SCALARS; TENSORS; THERMODYNAMICS
Descriptors DEC
FIELD THEORIES; FLUID FLOW; INCOMPRESSIBLE FLOW; RELATIVITY THEORY; STEADY FLOW

Optional Information

Notes
AID: 24