Time symmetry
Examining descriptions that do not privilege one temporal direction.
Quantum foundations · Auckland, New Zealand
Independent theoretical research in quantum foundations
McIntyre Lab investigates whether quantum theory, matter, probability, geometry, and gravity might be understood through a common underlying structure.
Research orientation
Ambitious questions. Conservative claims.
The laboratory examines time-symmetric and globally consistent descriptions of quantum systems, and asks how familiar spacetime structure might emerge from deeper constraints.
Independence allows the lab to choose its research questions. Scientific governance determines what conclusions may be drawn from the answers.
Global consistency
Studying constraints that apply across a physical history as a whole.
Emergent spacetime
Asking how familiar geometric structure might arise from deeper relations.
Finite calculations
Ideas made inspectable
These selected visual summaries are representative of finite work carried out within the research programme. They communicate the character and maturity of the internal work without presenting complete results for external scrutiny.
Publication boundary. Full definitions, derivations, data, code provenance, validation and interpretation limits are retained in internal reports. Future papers and research notes will provide citable technical accounts when the work is ready.
Representative finite work
Finite causal comparisons
How can distinct finite causal candidates be compared without assuming a continuum answer?
This visual summary compares a native finite structure with several smooth and dynamical candidate families. It illustrates how internal tests distinguish calculated structure from possible continuum interpretations.
'Lines guide the eye' scale note: The horizontal display scale is non-linear. The index positions shown are aligned to selected underlying parameter values that are not reproduced here, so apparent straightness and slope are not quantitative. The rescaling makes the structure of the candidate comparison easier to communicate.
The figure is representative of an internal research calculation. It does not select a physical spacetime or report a complete research result.
Representative finite work
Positive contexts and signed representations
How can positive finite context probabilities be compared with a compatible signed representation?
This conventional finite quantum benchmark exercises an internal calculation and consistency pipeline across contextual descriptions.
It is a synthetic control, not experimental evidence, a new quantum prediction or a claim about negative probabilities in nature.
Representative finite work
Finite radial source and response
Can a finite source pass consistently through a stationary radial calculation?
This visual summary shows an internal source-to-response benchmark checked across finite refinements and conventional spherical controls.
It validates an internal finite interface; it does not propose a new gravitational law or establish a physical-scale result.
Selected programmes
Three connected lines of enquiry
A question in physics exposed the need for new mathematical language. That language exposed a probability problem. The three programmes now return to physics together.
ChronaQ
Investigates time-symmetric, globally constrained formulations of quantum systems and the circumstances in which familiar temporal and geometric descriptions could emerge.
ψ‑Mathematics
Develops mathematical language for compatible local and global structures, projection-defined models, and the relationship between latent objects and observable descriptions.
Signed Probability
Studies whether signed latent contributions can provide useful intermediate descriptions while observable probabilities remain non-negative and subject to explicit consistency conditions.
Open research
Published first. Open to response.
Selected research is published on this website first, while its arguments can still benefit from close reading, challenge, and discussion.
- Website first
- New work appears on mcintyrelab.org so it can be read and questioned while it is still developing.
- Feedback and collaboration
- Critical feedback and collaboration are welcome. Substantive contributions will be recognised clearly and proportionately.
- Wider distribution
- After revision, suitable manuscripts are intended for arXiv so the work can reach a wider research community.
- Language access
- Selected work may be published in additional languages, including Esperanto. Translation and terminology assistance are welcome.