Physics & Philosophy
Foundational physics, ontology, and scientific realism.
An open academic project for theoretical physics and philosophy, focusing on quantum foundations, dark matter theory, ontology, scientific realism, and formal models.
Mission
To examine foundational problems through formal theory and philosophical analysis.
Physics & Philosophy is an open academic project devoted to foundational problems in theoretical physics, ontology, and scientific realism. It approaches these problems through rigorous scientific reasoning, formal theory, mathematical modeling, historical analysis, and critical philosophical interpretation.
The project addresses philosophical questions sharpened by modern physics, especially by the Copenhagen interpretation, the measurement problem, and the continuing debate over realism.
It welcomes contributions and critical discussion from theoretical physicists, philosophers of science, independent scholars, and academic associations. Its aim is to support disciplined academic exchange through arguments, models, references, simulations, and theoretical proposals.
Foundational Physics
Quantum measurement, interpretations of quantum mechanics, dark matter theory, and the conceptual structure of modern physics.
Ontology and Realism
Scientific realism, structural realism, ontology, metaphysical method, and the status of theoretical entities.
Formal Models and Scholarly Exchange
Mathematical models, simulation code, annotated literature, technical notes, and academic discussion among researchers, philosophers of science, and independent scholars.
Quantum Measurement and Interpretations
This section surveys the measurement problem, the status of the wave function, the emergence of classicality, and major interpretive frameworks in quantum theory.
| Interpretation | Central Idea | Representative Literature |
|---|---|---|
| Copenhagen / Orthodox Views | Measurement is treated as a primitive or classical intervention; the formalism predicts outcomes without requiring a fully realist account of the wave function. | Bohr; Heisenberg; von Neumann |
| Many-Worlds / Everettian Quantum Mechanics | The universal wave function evolves unitarily; apparent collapse is replaced by branching structure and relative states. | Everett 1957; DeWitt; Wallace |
| de Broglie–Bohm Theory | Particles have definite positions guided by the wave function; measurement outcomes reflect hidden-variable dynamics. | de Broglie; Bohm 1952; Bell |
| Objective Collapse Models | Collapse is a real physical process modifying standard unitary dynamics. | GRW; Pearle; Ghirardi, Rimini, Weber |
| Decoherence-Based Accounts | Environmental entanglement suppresses interference between macroscopic alternatives, explaining effective classicality. | Zeh; Zurek; Joos; Schlosshauer |
| Consistent Histories | Quantum systems are described by decoherent sets of histories rather than single measurement events. | Griffiths; Omnès; Gell-Mann and Hartle |
| Relational Quantum Mechanics | Quantum states are relative to physical systems; properties are not absolute but relational. | Rovelli |
| QBism | The quantum state represents an agent’s personal degrees of belief about future experiences. | Fuchs; Schack; Mermin |
| Modal Interpretations | Quantum systems possess definite-valued properties selected by the structure of the state and dynamics. | van Fraassen; Dieks; Vermaas |
| Transactional Interpretation | Quantum processes involve advanced and retarded waves forming transactions between emitters and absorbers. | Cramer; Kastner |
| Information-Theoretic Approaches | Quantum theory is reconstructed from constraints on information, probability, and communication. | Wheeler; Zeilinger; Clifton, Bub, Halvorson |
Key Questions
Dark Matter: Theory and Observation
This section summarizes the empirical motivations for dark matter, the major candidate classes, and the observational and experimental programs used to constrain them.
Observational Evidence
- Galaxy rotation curves
- Galaxy cluster dynamics
- Gravitational lensing
- Cosmic microwave background anisotropies
- Large-scale structure formation
- Bullet Cluster and cluster merger systems
Candidate Frameworks
- Cold dark matter and ΛCDM
- Weakly interacting massive particles
- Axions and axion-like particles
- Sterile neutrinos
- Self-interacting dark matter
- Fuzzy or ultralight dark matter
- Primordial black holes
- Modified gravity and MOND-like alternatives
| Program | Purpose | Examples |
|---|---|---|
| Direct Detection | Search for scattering between dark matter particles and detector nuclei or electrons. | XENON, LUX-ZEPLIN, PandaX, SuperCDMS |
| Indirect Detection | Search for annihilation or decay products such as gamma rays, neutrinos, or cosmic rays. | Fermi-LAT, AMS-02, H.E.S.S., IceCube |
| Collider Searches | Look for missing energy or mediator signatures in high-energy collisions. | LHC, ATLAS, CMS |
| Astrophysical Constraints | Use structure formation, lensing, dwarf galaxies, and cluster dynamics to constrain models. | CMB, weak lensing, Lyman-alpha forest, galaxy surveys |
Ontology and Realism
Ontology concerns what exists, what kinds of entities physical theories commit us to, and how theoretical structure should be interpreted. Realism concerns whether successful theories approximately describe a mind-independent world.
Scientific Realism
The view that mature, successful scientific theories provide approximately true descriptions of unobservable entities and structures.
Structural Realism
The view that science primarily captures relational or mathematical structure rather than the intrinsic nature of objects.
Instrumentalism
The view that theories are tools for prediction and organization, not necessarily descriptions of underlying reality.
Entity Realism
The view that experimental manipulation can justify belief in certain entities even when broader theoretical frameworks remain provisional.
Ontic Structural Realism
The stronger view that structure is not merely epistemic but ontologically primary.
Process Ontology
The view that processes, events, relations, or becoming are more fundamental than enduring substances.
Models, Code, and Reproducible Results
This section will host simulation code, notebooks, parameter studies, and figures for quantum measurement models and dark matter models.
Quantum Measurement Models
Planned materials include unitary system-apparatus-environment simulations, decoherence models, pointer-state dynamics, Born-rule tests, and comparisons across interpretive assumptions.
repositories/
quantum-measurement/
notebooks/
src/
figures/
results/
README.mdDark Matter Models
Planned materials include rotation-curve fitting, halo profiles, modified-gravity comparisons, cosmological parameter notebooks, and candidate-specific constraints.
repositories/
dark-matter/
halo-models/
observations/
simulations/
figures/
README.mdOriginal Contributions
The platform also presents original work. These proposals are framed as research programmes and theoretical contributions, to be developed through technical manuscripts, formal arguments, simulations, and peer review.
Unitary Quantum Measurement Theory
A proposed framework in which quantum measurement is treated within a fully unitary dynamical structure, aiming to account for apparent outcome definiteness without introducing a fundamental collapse postulate.
Status: manuscript / technical notes in preparation.
Manifestational Ontology
A philosophical framework in which entities, states, or structures are analyzed through conditions of manifestation, relational presentation, and ontological dependence.
Status: conceptual framework / essay series in preparation.
Dark Matter Theory
A theoretical proposal addressing the nature, phenomenology, or effective behavior of dark matter, to be compared with astrophysical observations and existing candidate frameworks.
Status: model development / simulation programme.
Classical Reality Self-Consistency Theory
A proposed account of how classical reality may arise as a self-consistent structure from underlying physical, observational, or manifestational constraints.
Status: theoretical framework / formalization in progress.
Contact and Contribution
Researchers, philosophers of science, independent scholars, and academic associations interested in foundations of physics, ontology, quantum theory, dark matter, or comparative metaphysics are welcome to propose notes, bibliographies, code repositories, or collaborative discussions.
Contact
Email: georgeszhou@physicsphilosophy.org
Website: physicsphilosophy.org
ORCID: add ORCID link here
