Sentences with phrase «cosmological space times»
Not exact matches
Two proposed forms for dark energy are the cosmological constant, a constant energy density filling space homogeneously, and scalar fields such as quintessence or moduli, dynamic fields whose energy density can vary in time and space.
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Dark energy could simply be a property of space - time, called the cosmological constant, which appears as a term added into the equations of general relativity.
Einstein's equations of general relativity provide a mechanism for this phenomenon, in the form of the cosmological constant, also known as the inherent «dark energy» of space - time.
We start with the fuzzy world of quantum geometry, where it is even difficult to say what is time and what is space, yet the phenomena occurring in our cosmological model still look as if everything was happening in ordinary spacetime!
The British astrophysicist told reporters today that data from distant supernova blasts have «led me to reconsider my theoretical preferences» about the cosmological constant, the unsettling repulsive force that would propel space itself to inflate more quickly with time.
In the case of intrinsic defects in space - time (e.g., cosmic strings or walls), the production of new defects as the universe expands is mathematically similar to a cosmological constant, although the value of the equation of state for the defects depends on whether the defects are strings (one - dimensional) or walls (two - dimensional).
A 100 - year - old «cosmological constant» theory introduced by Albert Einstein in relation to his work on general relativity and some other theories derived from this model remain as viable contenders because they propose that dark energy is a constant in both space and time: Gravitational waves and light waves are affected in the same way by dark energy, and thus travel at the same rate through space.
For Kiefer the ocean suggests a primal, amniotic, pre-linguistic space, something without beginning or end, where time and space take on cosmological and existential meanings familiar from quantum physics.