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Physics papers 12 papers
Physicists. Quantum mechanics and its foundations, qubit and device physics, decoherence and leakage, entanglement, anyons and topological matter, superconductivity, thermodynamics of physical systems, spacetime, cosmology and quantum biology.
Computation theory. Computability, complexity and decidability Tagged papers: 29.
BQP_physical: Bounding Universal Quantum Computation under Correlated Noise and Causality Constraints
Universal gate‑based quantum computers promise exponential speed‑ups for problems such as integer factorisation, yet commercial‑scale devices remain absent. The gap originates from physical limits that are not captured by the abstract class BQP. We formalise a new class BQP_physical that…
Decoherence as a Ubiquitous Consciousness‑Driven Collapse: Analytical Comparison with Standard Environmental Decoherence
The measurement problem and the hard problem of consciousness are often treated as separate philosophical challenges. A growing line of speculation proposes that consciousness itself induces wavefunction collapse, implying that collapse could occur continuously throughout the universe wherever…
Quantized Ringdown Echoes from a Discrete Clockwork Spacetime Substrate
Gravitational‑wave observations of binary‑black‑hole mergers provide direct access to the post‑merger ringdown, a regime traditionally modeled by a smooth superposition of quasi‑normal modes (QNMs). A discrete computational substrate for spacetime predicts that the ringdown should contain a…
Bosonic Barrier Penetration and the Combinatorial Landscape of Cellular Automata Models for UV‑Mediated Cellular Communication
Biological membranes block macroscopic fermionic matter yet allow ultraviolet (UV) photons to pass, prompting speculation that bosonic statistics confer a signaling advantage. The gap is quantitative: no study has simultaneously evaluated (i) the transmission probability of UV photons through…
Thermodynamic Feasibility of Tubulin Conformational Switching as a Heat‑Free Parallel Computation Substrate
Cellular information processing is limited by the heat generated during molecular state changes, which constrains the scalability of intracellular computing architectures. The hypothesis that tubulin dimers in microtubules can act as binary switches with near‑Landauer‑limited energy consumption has…
Epistemic Ineffability in Finite Subsystems: An Information-Theoretic Bound on Coarse‑Grained Reconstructions
Finite observers embedded in an information‑conserving whole cannot externalize their full epistemic state. Existing digital‑twin, multiscale, and uncertainty‑estimation studies illustrate this limitation but do not quantify the inevitable information loss. We formalize epistemic “handles’’ as…
Computation as Hamiltonian Isomorphism: A Mode-Based Taxonomy of Physical Computing Substrates
Special-purpose accelerators, neuromorphic chips, and optical processors are today evaluated by qubit or transistor counts, yet the machines that deliver the largest effective speedups are those whose physical dynamics directly embodies the target problem. This paper addresses a specific gap: no…
Physical Irrelevance of Uncountability: Computable Reals Suffice for Continuum Physics
Continuum physics is traditionally formulated over the uncountable real line $\mathbb{R}$, yet every laboratory measurement, record, and computation is finite. This paper asks whether the uncountability of $\mathbb{R}$—as distinct from its Archimedean completeness—has any observable consequence. The…
Corrected Condensation Indices and the Sixteen-Fold Way: A Quantitative Bulk-Boundary Dictionary for Ising-Type Anyon Condensates
A companion preprint (https://papers.qnfo.org/papers/a-two-index-framework-for-the-bulk-boundary-correspondence-of-anyon-condensation/) introduced computable indices for anyon condensation: the dimension ratio $\kappa = D_C^2/D_D^2$, the chirality-sensitive index $\mu = 2\,\Delta c$, and the…
Spin Glasses and Complexity: Replica Symmetry Breaking, Frustration, and the Statistical Mechanics of Disordered Systems
Spin glasses occupy a unique position at the intersection of statistical mechanics, condensed matter physics, and the theory of complex systems. Originally formulated as a model for disordered magnetic alloys (the Edwards-Anderson model, 1975), spin glass theory has grown into a general mathematical…
Topological and Computational Unification of Emergent Agency
This manuscript addresses the foundational tension between microscopic superdeterminism and macroscopic emergent agency through the lens of complex systems theory. By synthesizing the computational irreducibility of cellular automata with the geometric constraints of fractal invariant sets, we…
Emergent Computation
The classical Turing-von Neumann architecture, which has defined the digital epoch, is confronting insurmountable energetic and structural limits, most notably the von Neumann bottleneck. This necessitates a paradigm shift toward physical computation, a framework where information processing is…
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