Results 51 to 60 of about 197,098 (270)

Universal Entanglement and an Information‐Complete Quantum Theory

open access: yesAdvanced Physics Research, EarlyView.
This Perspective summarize an informationcomplete quantum theory which describes a fully quantum world without any classical systems and concepts. Here spacetime/gravity, having to be a physical quantum system, universally entangles matter (matter fermions and their gauge fields) as an indivisible trinity, and encodes information‐complete physical ...
Zeng‐Bing Chen
wiley   +1 more source

Cleaning up the cosmological constant

open access: yes, 2012
We present a novel idea for screening the vacuum energy contribution to the overall value of the cosmological constant, thereby enabling us to choose the bare value of the vacuum curvature empirically, without any need to worry about the zero-point ...
AI Vainshtein   +21 more
core   +1 more source

The morphology of the oval window in Paranthropus robustus compared to humans and other modern primates

open access: yesThe Anatomical Record, EarlyView.
Abstract The oval window (OW) is an opening connecting the inner and middle ear. Its area has been shown to consistently scale with body mass (BM) in primates, and has been used alongside semi‐circular canal (SCC) size to differentiate Homo sapiens and fossil hominins, including Paranthropus robustus.
Ruy Fernandez, José Braga
wiley   +1 more source

Vacuum Energy, the Casimir Effect, and Newton’s Non-Constant

open access: yesUniverse, 2023
The idea of quantum mechanical vacuum energy contributing to the cosmological vacuum energy density is not new. However, despite the persisting cosmological constant problem, few investigations have focused on this subject.
Benjamin Koch   +3 more
doaj   +1 more source

The Well-Tempered Cosmological Constant

open access: yes, 2018
Self tuning is one of the few methods for dynamically cancelling a large cosmological constant and yet giving an accelerating universe. Its drawback is that it tends to screen all sources of energy density, including matter.
Appleby, Stephen, Linder, Eric V.
core   +1 more source

The cosmological constant problem [PDF]

open access: yesReviews of Modern Physics, 1989
Summary: Astronomical observations indicate that the cosmological constant is many orders of magnitude smaller than estimated in modern theories of elementary particles. After a brief review of the history of this problem, five different approaches to its solution are described.
openaire   +1 more source

HODGE DUALITY AND COSMOLOGICAL CONSTANT [PDF]

open access: yesModern Physics Letters A, 2006
We present a simple mechanism to eliminate cosmological constants both in supersymmetric and non-supersymmetric theories. This mechanism is based on the Hodge (Poincaré) duality between a 0-form and D-form field strengths in D-dimensional spacetime. The new key ingredient is the introduction of an extra Chern–Simons term into the D-form field strength
Nishino, Hitoshi, Rajpoot, Subhash
openaire   +3 more sources

Anthropologist, heal thyself: Toward an anthropology of healing through relational interbeing

open access: yesFeminist Anthropology, EarlyView.
Abstract I call for an anthropology that confronts its own woundedness. Anthropologists often bear witness to suffering but rarely examine how our own grief, trauma, and institutional distress shape the affective tone of our work. Drawing on fieldwork with Runa (Quechua) women affected by forced sterilization in Peru and guided by my collaborator and ...
Lucía Isabel Stavig
wiley   +1 more source

Cosmography of the Dynamical Cosmological «Constant»

open access: yesEast European Journal of Physics, 2019
The paper considers a cosmographical approach to analyze cosmological models. Cosmography is a method to describe the kinematics of the cosmological expansion based only on the cosmological principle. We consider a method of treating free parameters of a
Oryna Ivashtenko
doaj   +1 more source

Configurational entropy and instability of tachyonic braneworld

open access: yesPhysics Letters B, 2020
We consider tachyonic braneworld with a bulk cosmological constant and investigate a configurational entropy of various magnitudes of scale factor. It is found that for a bulk negative/zero cosmological constant, the configurational entropy has a global ...
Chong Oh Lee
doaj   +1 more source

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