Attempts to develop a quantum mechanical theory of cosmology
Quantum field theory
Feynman diagram
History
Background
Field theory
Electromagnetism
Weak force
Strong force
Quantum mechanics
Special relativity
General relativity
Gauge theory
Yang–Mills theory
Symmetries
Symmetry in quantum mechanics
C-symmetry
P-symmetry
T-symmetry
Lorentz symmetry
Poincaré symmetry
Gauge symmetry
Explicit symmetry breaking
Spontaneous symmetry breaking
Noether charge
Topological charge
Tools
Anomaly
Background field method
BRST quantization
Correlation function
Crossing
Effective action
Effective field theory
Expectation value
Feynman diagram
Lattice field theory
LSZ reduction formula
Partition function
Propagator
Quantization
Regularization
Renormalization
Vacuum state
Wick's theorem
Equations
Dirac equation
Klein–Gordon equation
Proca equations
Wheeler–DeWitt equation
Bargmann–Wigner equations
Standard Model
Quantum electrodynamics
Electroweak interaction
Quantum chromodynamics
Higgs mechanism
Incomplete theories
String theory
Supersymmetry
Technicolor
Theory of everything
Quantum gravity
Scientists
Adler
Anderson
Anselm
Bargmann
Becchi
Belavin
Bell
Berezin
Bethe
Bjorken
Bleuer
Bogoliubov
Brodsky
Brout
Buchholz
Cachazo
Callan
Coleman
Dashen
DeWitt
Dirac
Doplicher
Dyson
Englert
Faddeev
Fadin
Fayet
Fermi
Feynman
Fierz
Fock
Frampton
Fritzsch
Fröhlich
Fredenhagen
Furry
Glashow
Gelfand
Gell-Mann
Glimm
Goldstone
Gribov
Gross
Gupta
Guralnik
Haag
Heisenberg
Hepp
Higgs
Hagen
't Hooft
Iliopoulos
Ivanenko
Jackiw
Jaffe
Jona-Lasinio
Jordan
Jost
Källén
Kendall
Kinoshita
Klebanov
Kontsevich
Kuraev
Landau
Lee
Lehmann
Leutwyler
Lipatov
Łopuszański
Low
Lüders
Maiani
Majorana
Maldacena
Migdal
Mills
Møller
Naimark
Nambu
Neveu
Nishijima
Oehme
Oppenheimer
Osterwalder
Parisi
Pauli
Peskin
Plefka
Polyakov
Pomeranchuk
Popov
Proca
Rubakov
Ruelle
Salam
Schrader
Schwarz
Schwinger
Segal
Seiberg
Semenoff
Shifman
Shirkov
Skyrme
Sommerfield
Stora
Stueckelberg
Sudarshan
Symanzik
Thirring
Tomonaga
Tyutin
Vainshtein
Veltman
Virasoro
Ward
Weinberg
Weisskopf
Wentzel
Wess
Wetterich
Weyl
Wick
Wightman
Wigner
Wilczek
Wilson
Witten
Yang
Yukawa
Zamolodchikov
Zamolodchikov
Zee
Zimmermann
Zinn-Justin
Zuber
Zumino
v
t
e
Quantum cosmology[1][2] is the attempt in theoretical physics to develop a quantum theory of the universe. This approach attempts to answer open questions of classical physical cosmology, particularly those related to the first phases of the universe.
Classical cosmology is based on Albert Einstein's general theory of relativity (GTR or simply GR) which describes the evolution of the universe very well, as long as you do not approach the Big Bang. It is the gravitational singularity and the Planck time where relativity theory fails to provide what must be demanded of a final theory of space and time. Therefore, a theory is needed that integrates relativity theory and quantum theory.[3] Such an approach is attempted for instance with loop quantum cosmology, loop quantum gravity, string theory and causal set theory.[4]
In quantum cosmology, the universe is treated as a wave function instead of classical spacetime.[5]
^Bojowald, Martin (2015). "Quantum cosmology: A review". Reports on Progress in Physics. 78 (2): 023901. arXiv:1501.04899. Bibcode:2015RPPh...78b3901B. doi:10.1088/0034-4885/78/2/023901. PMID 25582917. S2CID 18463042.
^Chiou, Dah-Wei (2015). "Loop quantum gravity". International Journal of Modern Physics D. 24 (1): 1530005–1530331. arXiv:1412.4362. Bibcode:2015IJMPD..2430005C. doi:10.1142/S0218271815300050. S2CID 16655619.
^Stephen Hawking wrote 1999: So what the singularity theorems are really telling us, is that the universe had a quantum origin, and that we need a theory of quantum cosmology, if we are to predict the present state of the universe."Quantum Cosmology, M-theory and the Anthropic Principle - Stephen Hawking". Archived from the original on 2015-02-14. Retrieved 2015-02-14.
^Klebanov, Igor & Maldacena, Juan (2009). "Solving Quantum Field Theories via Curved Spacetimes". Physics Today. 62 (1): 28. Bibcode:2009PhT....62a..28K. doi:10.1063/1.3074260.
^He, Dongshan; Gao, Dongfeng; Cai, Qing-yu (2014). "Spontaneous creation of the universe from nothing". Physical Review D. 89 (8): 083510. arXiv:1404.1207. Bibcode:2014PhRvD..89h3510H. doi:10.1103/PhysRevD.89.083510. S2CID 118371273.
Quantumcosmology is the attempt in theoretical physics to develop a quantum theory of the universe. This approach attempts to answer open questions of...
Loop quantumcosmology (LQC) is a finite, symmetry-reduced model of loop quantum gravity (LQG) that predicts a "quantum bridge" between contracting and...
found diverse support in works based on loop quantum gravity. In loop quantumcosmology, a branch of loop quantum gravity, the big bounce was first discovered...
zero-point energy suggested by quantum field theory? (more unsolved problems in physics) In cosmology, the cosmological constant problem or vacuum catastrophe...
that has been advanced as a direct result of loop quantum gravity is called loop quantumcosmology (LQC). LQC advances the study of the early universe...
QuantumCosmology: An Overview". General Relativity and Gravitation. arXiv:0812.0177. Singh, Parampreet (14 September 2014). "Loop QuantumCosmology and...
based models of quantumcosmology Regge calculus Shape Dynamics String-nets and quantum graphity Supergravity Twistor theory Canonical quantum gravity As was...
religious cosmology is more inclusive than a strictly scientific cosmology (physical cosmology and quantumcosmology) in that religious cosmology is not...
(1999). "Phenomenology, astrophysics and cosmology of theories with submillimeter dimensions and TeV scale quantum gravity". Physical Review. D59 (8): 086004...
Physical cosmology is a branch of cosmology concerned with the study of cosmological models. A cosmological model, or simply cosmology, provides a description...
In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ), alternatively called Einstein's cosmological constant...
put weak limits on large extra dimensions. Kaluza–Klein theory Loop quantumcosmology "Session D9 - Experimental Tests of Short Range Gravitation". flux...
causal sets, twistor models or the path integral based models of quantumcosmology. All candidate theories still have major formal and conceptual problems...
multiverse which arises naturally within the context of his own work in quantumcosmology. Geek's Guide to the Galaxy (9 September 2022). "Have Some Scientists...
"Logarithmic nonlinearity in theories of quantum gravity: Origin of time and observational consequences". Gravitation and Cosmology. 16 (4): 288–297. arXiv:0906.4282...
of all quantum physics, which includes quantum chemistry, quantum field theory, quantum technology, and quantum information science. Quantum mechanics...
concept to quantumcosmology, and the interpretation has been applied to the EPR paradox, revealing not only a peaceful co-existence between quantum mechanics...
The problem of quantumcosmology is that the physical states that solve the constraints of canonical quantum gravity represent quantum states of the entire...
center of a black hole without corrections from quantum mechanics, and within astrophysics and cosmology as the earliest state of the universe during the...
research interests are string theory, quantum field theory, quantum statistical mechanics and quantumcosmology. He is a member of the US National Academy...
of universes. Time scales mentioned in Hindu cosmology correspond to those of modern scientific cosmology. Its cycles run from our ordinary day and night...
many-worlds interpretation of quantum mechanics, and finds applications in quantumcosmology. It evolves deterministically according to a wave equation. The concept...
quantum mechanics is an attempt to explain how the mathematical theory of quantum mechanics might correspond to experienced reality. Although quantum...
In physical cosmology, fractal cosmology is a set of minority cosmological theories which state that the distribution of matter in the Universe, or the...
galactic gasses Martin Bojowald (1973–) studied loop quantum gravity and established loop quantumcosmology Hermann Bondi (1919–2005) developed the steady-state...
The quantum mind or quantum consciousness is a group of hypotheses proposing that local physical laws and interactions from classical mechanics or connections...
Global Information