Einstein–Cartan pseudoscalaron inflation, reheating and nonthermal leptogenesis
A theoretical study shows that an Einstein–Cartan inflation model with a torsion-born pseudoscalar inflaton necessarily produces the observed baryon asymmetry ...
Tag: Theoretical Physics
Physicists Map Every Possible Fate of the Universe in Lovelock Gravity
A complete qualitative analysis of Lovelock gravity reveals exotic cosmological scenarios, including a 'Big Shock' beginning that replaces the Big ...
Quantum Spacetime Twist Leaves Black Hole Temperature Untouched but Speeds Up Evaporation
A theoretical study of a non-commutative Schwarzschild-like black hole finds its Hawking temperature unchanged at second order, while its shadow ...
Theoretical study links flavor-dependent U(1) symmetry to lepton-flavor violation and muon g−2
A theoretical parameter scan found that the flavor-dependent U(1) gauge model can satisfy current muon g−2 constraints while predicting charged-lepton ...
Wormholes Look the Same in Two Gravity Theories, but the Matter Inside Tells a Different Story
A new theoretical analysis shows that unimodular gravity and general relativity produce identical wormhole geometries and geodesics, while demanding fundamentally ...
Ernst potentials get a five-dimensional upgrade for black holes with scalar hair
Bixano and Matos extend the Ernst potential formalism to Einstein-Maxwell gravity coupled to dilatonic or phantom scalar fields, deriving a ...
Quantum Crack in Classical Symmetry: Physicists Trace the Anomaly of Two-Dimensional Gauge Fields
A new theoretical calculation shows that gauge fields, long excluded from two-dimensional conformal anomalies, can produce a rich quantum trace ...
Physicists Build a Maxwellian Cube of Spacetime Symmetries for 3D Gravity
Theoretical physicists have generalized the classic 1968 cube of spacetime symmetry algebras using semigroup expansions, yielding an infinite hierarchy of ...
New Weak-Coupling Coefficient Collapses a Quantum Uncertainty Band to a Single Curve
By imposing a newly computed exact weak-coupling coefficient, physicists have collapsed a family of possible interpolation curves for thermal N=4 ...
Charged Black Holes Grow Scalar Hair When the Charge Crosses a Critical Threshold
A new theoretical study shows that Einstein–Euler–Heisenberg black holes spontaneously grow scalar hair in two distinct regimes, with the sign ...
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Mothers who receive childcare support from maternal grandparents show more parental warmth, finds NTU Singapore study
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University of Seville Breaks 120-Year-Old Mystery, Revises a Key Einstein Concept
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Bee body mass, pathogens and local climate influence heat tolerance
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Researchers record first-ever images and data of a shark experiencing a boat strike
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Groundbreaking Clinical Trial Reveals Lubiprostone Enhances Kidney Function
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