Results 171 to 180 of about 166,290,583 (305)
Bounding field excursions along null geodesics with applications to cosmology
Journal of High Energy PhysicsScalar fields in theories of gravity often inhabit a moduli space of vacua, and coherent spatial or temporal variations in their expectation values can produce measurable gravitational effects.
Aidan Herderschee, Aron C. Wall
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State sum models for quantum gravity [PDF]
, 2000 This paper reviews the construction of quantum field theory on a 4-dimensional spacetime by combinatorial methods, and discusses the recent developments in the direction of a combinatorial construction of quantum ...
Barrett, John W.
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Advanced Physics Research, EarlyView.This diagram illustrates the wavy flow configuration of the model in a Cartesian coordinate system. It represents the heat and mass transfer characteristics of ternary hybrid nanofluids over a vertically wavy surface in the presence of an induced magnetic field and double‐diffusive mixed convection.
Latif Ahmad +4 more
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The recipe for the degrees of freedom.
Journal of High Energy PhysicsWe consider the question of counting the degrees of freedom in theoretical models, with an emphasis on theories of fields and gravity. Among the possible approaches, the Hamiltonian formulation remains one of the most systematic and robust tools. However,
Anamaria Hell +3 more
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Business Strategy and the Environment, EarlyView.ABSTRACT Drawing upon ecological modernization theory as the analytical framework, this study employs macro‐level longitudinal tracking data covering China's major regions as research samples. It measures the green and low‐carbon development (GLCD) of manufacturing from the four dimensions—“carbon reduction, pollution mitigation, ecological expansion ...
Deng Wang +4 more
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Strict renormalizability as a paradigm for fundamental physics
Journal of High Energy PhysicsAn important theoretical achievement of the last century was the realization that strict renormalizability can be a powerful criterion to select Lagrangians in the framework of perturbative quantum field theory.
Luca Buoninfante
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A simple operator check of the effective fermion mode function during inflation [PDF]
, 2008 We present a relatively simple operator formalism which reproduces the leading infrared logarithm of the one loop quantum gravitational correction to the fermion mode function on a locally de Sitter background.
Miao, S. +3 more
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Quantum curvature fluctuations and the cosmological constant in a single plaquette quantum gravity model [PDF]
Understanding the microscopic behavior of spacetime, in particular quantum uncertainty in the Ricci scalar, is critical for developing a theory of quantum gravity and perhaps solving the cosmological constant problem.
Majid, S, Blitz, S
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Business Strategy and the Environment, EarlyView.ABSTRACT Given the critical role that banks play in sustainable development through their financial intermediation and capital allocation functions, assessing their sustainability performance has become an increasingly important research issue.
Özcan Işık +3 more
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Few‐Photon Fluorescence From Ultracold Bosons in an Optical Cavity
Contributions to Plasma Physics, EarlyView.ABSTRACT Within a cavity quantum electrodynamics framework, we analyse the fluorescent spectrum of ultracold bosons in resonant and second‐harmonic generation (SHG) regimes. Two settings are considered: (i) (few) bosons in an optical lattice and (ii) a trapped two‐component dilute Bose–Einstein condensate (2BEC) within the Bogoliubov scheme.
Megha Gopalakrishna +2 more
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