Quintessence (physics) - Wikipedia
In physics, quintessence is a hypothetical form of dark energy, more precisely a scalar field, postulated as an explanation of the observation of an accelerating rate of expansion of the universe.
[1304.1961] Quintessence: A Review - arXiv.org
2013年4月7日 · Quintessence is a canonical scalar field introduced to explain the late-time cosmic acceleration. The cosmological dynamics of quintessence is reviewed, paying particular attention to the evolution of the dark energy equation of state w.
Quintessence – Physics World
2000年11月1日 · In philosophy, quintessence refers to the fifth element – after air, earth, fire and water – proposed by the ancient Greeks to describe a sublime, perfect substance. In literature, Quintessence is the queen of a land of speculative science in Rabelais’ Gargantua.
Abstract At present we know nothing about the nature of the dark energy accounting for about 70% of the energy density of the Universe. One possibility is that the dark energy is provided by an extremely light eld, the quintessence, rolling down its potential.
Quintessence (Q) is a time-varying, spatially-inhomogeneous, negative pres sure component of the cosmic fluid [7]. It is distinct from A in that it dynamic: the Q energy density and pressure vary with time are spatially inhomoge neous. A common example of quintessence is a scalar field slowly rolling down
Quintessence (physics) - Wikiwand
In physics, quintessence is a hypothetical form of dark energy, more precisely a scalar field, postulated as an explanation of the observation of an accelerating rate of expansion of the universe.
Quintessence - Universe Today
2009年11月24日 · Quintessence covers a range of hypotheses (or models); the main difference between quintessence as a (possible) explanation for dark energy and the cosmological constant Λ (which harks back to...
Quintessence: The Search for Missing Mass in the Universe
Quintessence: The Search for Missing Mass in the Universe is the fifth non-fiction book by the American theoretical physicist Lawrence M. Krauss. [1] The book was published by Basic Books on December 21, 2000.
Rev. Mod. Phys. 75, 559 (2003) - The cosmological constant and …
2003年4月22日 · Physics welcomes the idea that space contains energy whose gravitational effect approximates that of Einstein's cosmological constant, \ensuremath{\Lambda}; today the concept is termed dark energy or quintessence.
Quintessence | astronomy and physics | Britannica
Known as “quintessence,” this form of dark energy would vary in space and time, thus providing a possible way to distinguish it from a cosmological constant. It is also similar in mechanism (though vastly different in scale) to the scalar field energy invoked in the inflationary theory…
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