scispace - formally typeset
Search or ask a question

What are some alternative theories of the Big Bang? 

Best insight from top research papers

Some remarkable examples of alternative cosmological theories to the Big Bang include variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, hypersphere universe models, and static models. These alternative theories differ from the standard model in various aspects such as CP violation, inflation, number of neutrino species, quark-hadron phase transition, dark matter, dark energy, nucleosynthesis scenarios, large-scale structure formation scenarios, and varying physical constants or gravity law. Some extreme alternative theories include tired-light hypotheses and other non-standard ideas. However, none of these alternative models have reached the same level of development as the standard model in explaining cosmological observations.

Answers from top 5 papers

More filters
Papers (5)Insight
The provided paper discusses an alternative quantization scheme for the gravitational Hamiltonian constraint of the k=-1 Friedmann-Robertson-Walker model, which replaces the classical big-bang singularity with an asymmetric quantum bounce. However, it does not discuss other alternative theories of the Big Bang.
The paper discusses alternative models to the standard Big Bang theory, including the possibility of degenerate neutrinos, brane-world cosmology, and the inclusion of a decaying cosmological term.
Reference EntryDOI
13 Mar 2019
1 Citations
The paper discusses alternative theories to the standard hot big-bang model, including the idea of a static universe and the concept of a cyclically evolving universe.
Open accessJournal ArticleDOI
8 Citations
The paper discusses alternative cosmological theories to the standard model, including variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, universe models as a hypersphere, static models, and tired-light hypotheses.
The paper discusses various alternative cosmological theories, including variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, universe models as a hypersphere, and static models.

Related Questions

What are the interesting theories about quantum gravity?5 answersThere are several interesting theories about quantum gravity. One theory proposes a novel approach and simplified model of Quantum Gravity based on the unification framework of Generalized Thermodynamics, which suggests cross-related terms and modified equations of General Relativity and Quantum Mechanics. Another theory introduces a new concept of quantum gravity that seamlessly merges General Relativity to the Standard Model, using a patent-pending magnetic confinement method to understand how black holes operate at their singularities. A different theory investigates classical and quantum aspects of a general class of higher derivative theories of gravity, including the appearance of ghost-like particles and the power-counting renormalizability of the theory. Additionally, a model for the information processing structure of quantum gravity is proposed, showing that the quantum gravity environment acts as an information resource-pool and allows for the simulation of remote outputs from local environment states. Finally, a quantum gravitational theory based on the hypothesis of the absolute reference system studies the quantum nature of gravitational potential and the dynamics of particles under the influence of the gravitational field.
What are the competing theories of consciousness?4 answersCompeting theories of consciousness include the emphasis on the primary role of either the cerebral cortex or the brain stem, or a combination of both in the brain. Field theories of consciousness propose that the substrate of consciousness is some kind of field in the brain, such as the electromagnetic (EM) field. Other theories include higher-order theories, global workspace theories, re-entry and predictive processing theories, and integrated information theory. There are also theories that consider consciousness as a simple integration of information or as a graded entity, while others equate consciousness with the content of awareness. Graziano's attention-schema theory (AST) of consciousness is another theory that connects with other theories of consciousness.
Fanfiction alternative universe?5 answersFanfiction alternative universe is a genre within fanfiction where writers create stories that deviate from the original canon and explore different scenarios or settings. It allows fans to imagine alternative versions of their favorite characters and worlds. The Omegaverse is an example of a popular alternative universe within fanfiction, which has its own narrative structure and has gained interest from both fans and the industry. Alternative universe fanfiction has evolved over time, with platforms shifting from websites like Wattpad to social media platforms like Twitter to cater to changing fan preferences. Alternative universe fanfiction has been found to have a positive impact on increasing reading interest, particularly among teenagers. Overall, fanfiction alternative universe provides fans with the opportunity to engage creatively with their favorite fandoms and explore new possibilities beyond the original source material.
How do we define an alternative explanation?5 answersStep 1: Alternative explanations are additional interpretations or reasons that provide different perspectives or insights to account for certain results or phenomena. Step 2: - "Context_1" - "Context_3" Step 3: Alternative explanations are additional interpretations or reasons that provide different perspectives or insights to account for certain results or phenomena.
What are alternatives to mitochondria?5 answersMitochondria have been found to have alternative functions within the cell. These include intracellular Ca2+ regulation, thermogenesis, control of apoptosis, generation of reactive oxygen species, and triggering of necrotic cell death under oxidative stress conditions. Mitochondria also participate in cellular processes such as heme and steroid syntheses, production and transmission of a transmembrane potential, detoxication, and heat production. Additionally, mitochondria are involved in cellular degradation processes, including proteasomal and autophagic degradation, and the activity of proteases. Autophagy, specifically mitophagy, plays a central role in the degradation of mitochondria, with the mitochondrial permeability transition potentially initiating the process in certain circumstances. Overall, these alternative functions highlight the importance of mitochondria in maintaining cellular homeostasis and their unique contributions to various cellular processes.
What are the different theories that attempt to explain inflation?5 answersTheories of inflation attempt to explain the root causes of inflation by focusing on different aspects of economic and political structure. One theory emphasizes the role of the natural resource sector and the shadow economy as determinants of inflation, along with political instability and less democratic political systems. Another theory explores inflation driven by an ultraviolet safe and interacting scalar sector in nonsupersymmetric gauge field theories. Additionally, there are approaches that aim to derive inflation from a more fundamental principle, such as the "top-down" approach starting from a complete theory in the ultraviolet or the "bottom-up" approach parameterizing our ignorance about the ultraviolet theory. Furthermore, inflationary scenarios driven by a scalar field in the presence of a non-minimal coupling between matter and curvature have been studied, which can modify the Friedmann equation and the spectrum of primordial perturbations.

See what other people are reading

What is the relationship between quantum mechanics and general relativity?
5 answers
Quantum Mechanics and General Relativity are two fundamental theories in physics that have been traditionally considered incompatible. However, recent research by Agins suggests that the conflict arises from using the wrong model of the universe. According to Agins, the true model of the universe involves an expanding balloon-like structure, where the radial expansion velocity of the universe plays a crucial role. This model reconciles the conflicting demands of Quantum Mechanics and General Relativity by providing two different viewpoints: the viewpoint of an observer trapped inside the expanding balloon and the viewpoint of the center of the universe. From the observer's viewpoint, space and time are inseparable twins, and time becomes a relative concept, while from the center's viewpoint, simultaneity is absolute and there is absolute universal time. This understanding allows for a harmonious integration of Quantum Mechanics and General Relativity, providing a potential path towards a "Theory of Everything".
What are the main objectives of space exploration?
4 answers
Space exploration has several main objectives. These include advancing scientific knowledge of the potential for life elsewhere, searching for life elsewhere, and understanding the hazards and resources available as humans explore space. Additionally, space exploration aims to explore the frontier, pursue geopolitical and national security interests, and stimulate technological inventions and new ways of thinking about and acting on the climate crisis on Earth. It also involves creating a long-term plan for the robotic and human exploration of the solar system, with Mars and the Moon as first targets. Furthermore, space exploration seeks to produce a large three-dimensional evolutionary map of the Universe, study the power spectrum of density fluctuations, measure the baryonic acoustic oscillations, and place high accuracy constraints on the dark energy equation of state parameter and its evolution.
What is the most distant thing?
4 answers
The most distant thing in the universe is the newly discovered supermassive black hole, which is 800 million times the mass of our Sun and existed when the universe was only 690 million years old. Additionally, the most distant star ever observed existed when the universe was only 900 million years old.
What is the evidence for dark matter and dark energy?
5 answers
The evidence for dark matter and dark energy comes from various cosmological observations. Dark matter, which constitutes about 25% of the universe, is inferred from measuring the gravitational force it exerts on visible matter in galaxies and clusters, affecting their size, shape, rotation, and motion. On the other hand, dark energy, accounting for about 70% of the universe, is supported by observations of Type Ia supernovae, cosmic microwave background (CMB), galaxy surveys, Sunyaev-Zeldovich effect, and gravitational lensing by clusters. These observations have led to the development of the concordance ΛCDM model of cosmology. However, there are discrepancies in the values of certain parameters, such as H0 and σ8, between CMB and large-scale structures, which may require varying dark energy models to resolve. Further research is needed to establish the evidence for dark matter and dark energy more firmly.
How old is the universe?
5 answers
The age of the universe is estimated to be between 10 billion and 20 billion years old. Astronomers have determined that the universe is 13.7 billion years old through various methods such as studying the evolution of the oldest galactic stars and the abundances of isotopes. The age of the oldest stars in the Milky Way's halo is estimated to be around 15.2 billion years old. Additionally, the age of the universe can be determined through cosmochronology of long-lived radioactive nuclei and precision cosmology using the mapping of the cosmic microwave background. Based on these methods, the most probable age for the universe is estimated to be around 14 ± 2 billion years old.
What are the alternative theories of the big bang?
5 answers
Alternative theories of the Big Bang include variations on the Standard Model, quasi-steady-state cosmology, plasma cosmology, hypersphere universe models, and static models. These alternative theories differ from the standard model in various aspects such as considerations on CP violation, inflation, number of neutrino species, quark-hadron phase transition, baryonic or non-baryonic dark matter, dark energy, nucleosynthesis scenarios, and large-scale structure formation scenarios. Some major variations include an inhomogeneous universe, Cold Big Bang, varying physical constants or gravity law, zero-active mass, Milne, and cyclical models. The most extreme alternative theories include non-cosmological redshift hypotheses like "tired-light" and other non-standard ideas. However, none of these alternative theories have reached the same level of development as the standard model in explaining cosmological observations.
What are the ongoing practices in Machine Learning and Deep Learning Applications in Non-Linear Predictive Modelling?
4 answers
Machine learning and deep learning techniques are being used in non-linear predictive modeling. One approach is to combine different methods to improve prediction accuracy. For example, a study by Oliveira et al. proposes a model that combines Complete Ensemble EMD with Adaptive Noise, Singular Value Decomposition, and Long Short Term Memory network to predict non-linear and non-stationary time series data. Another approach is to use deep learning models to emulate simulations of structure formation in cosmology. A model developed by Oliveira et al. uses a V-Net based model to transform fast linear predictions into fully non-linear predictions from numerical simulations. Additionally, Bayesian generalized nonlinear regression models with a comprehensive non-linear feature space have been introduced. These models generate non-linear features hierarchically, similar to deep learning, and allow for variable selection, resulting in more interpretable models. Deep learning estimation has also been applied to non-linear factor models, providing improved modeling flexibility and estimation accuracy. Overall, these studies demonstrate the ongoing practices in machine learning and deep learning applications in non-linear predictive modeling.
What about neutrino?
5 answers
Neutrinos are mysterious and elusive particles that play a crucial role in various cosmic phenomena. They interact with matter and each other through the weak interaction, which is significantly weaker than the electromagnetic interaction. However, in the early universe and collapsing stars, neutrinos can dominate the dynamics and influence the synthesis of elements due to their large numbers and feeble interaction strength. Neutrino physics is at the forefront of elementary particle physics, nuclear physics, astrophysics, and cosmology, as these fields overlap in the study of neutrinos. They are abundantly emitted by the Sun, stars, active galaxies, and were produced in abundance during the Big Bang, permeating the entire Universe. Neutrinos are also produced by nuclear reactors and particle accelerators, allowing for controlled studies. The study of neutrinos has provided valuable insights into the stars, the Earth, and the Sun.
Have modern technologies been made with the intent of making cosmological measurements?
4 answers
Modern technologies have been developed with the intention of making cosmological measurements. These advancements in instrumentation enable precise and accurate astrometric and spectroscopic measurements, which can address fundamental mysteries such as dark energy and dark matter, and probe the nature of spacetime. Open-source computational tools have also been created to model large-scale observational data sets using modern cosmology theory, allowing researchers to constrain parameter values and discover the accelerated expansion of the universe and its composition. Furthermore, radio astronomy has undergone accelerated improvement, making it an exciting source for new discoveries and cosmological constraints, particularly in weak gravitational lensing. Additionally, the cosmic chronometers approach provides cosmology-independent measurements of the expansion history of the universe, offering constraints beyond the ΛCDM model.
Is yukawa potential explanation of a dark metter phenomenon?
5 answers
The Yukawa potential is proposed as an explanation for the phenomenon of dark matter. It suggests that the effect of cold dark matter in the cosmological setup can be explained by the coupling between baryonic matter particles through a long-range force mediated by a graviton with mass mg. This quantum-corrected Yukawa-like gravitational potential is characterized by the coupling parameter α and the wavelength parameter λ, which determines the range of the force. The corrected Friedmann equations, obtained using Verlinde's entropic force interpretation of gravity, show that dark matter is an apparent effect with no dark matter particle existing in this picture. The dark energy and cosmological constant are also related to the graviton mass and α. The Yukawa potential interacting dark matter model provides excellent agreements with observations on galactic and cluster scales, and the masses of the force carrier and dark matter particle can be constrained by observational data.