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Physics papers 16 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.
Qubits. Qubit devices, control and readout Tagged papers: 25.
Trapped‑Ion Quantum Simulation as a Falsification Tool for the Posner Molecule Hypothesis
The Posner molecule hypothesis posits that phosphorus‑31 nuclear spins in $\mathrm{Ca}_{9}(\mathrm{PO}_{4})_{6}$ retain quantum coherence long enough to affect neural processes. Existing experimental techniques cannot isolate these spins, and no scalable quantum platform reproduces the hypothesised…
Viscoelastic Gating of Spin Coherence in Synthetic Hydrogels: A Unified Theoretical Analysis
Warm‑temperature quantum information processing is limited by rapid spin dephasing in liquid environments. Existing solid‑state platforms such as nitrogen‑vacancy (NV) centres in diamond achieve millisecond‑scale coherence only at cryogenic temperatures, while biological media appear unsuitable for…
Ultrametric Foundations for Quantum Dynamics: A $p$-Adic Calculus Approach
Quantum processors, sensors and communication links lose coherence and demand steep error-correction overheads because their dynamics are modeled over the continuous real field. A proposed alternative replaces the real line with the $p$-adic fields $\mathbb{Q}_{p}$, endowing quantum dynamics with a…
Viscoelastic Gating of Nuclear Spin Coherence in Microtubules: A Quantitative Assessment
Biological cells operate at 310 K, a temperature at which thermal fluctuations are expected to destroy quantum coherence on sub‑picosecond scales. The viscoelastic gating hypothesis proposes that the frequency‑dependent mechanical response of the cytoskeleton attenuates environmental coupling,…
Differential Einthoven‑Inspired Readout for Superconducting Qubit Measurement: Theory and Projected Fidelity Gains
Readout error dominates the overhead of quantum error correction in superconducting processors, limiting logical error rates and scaling prospects. Existing dispersive readout chains suffer from common‑mode disturbances such as amplifier drift, thermal fluctuations, and stray coupling, which add…
Two-Level System Defects as a Random Ensemble: Counting and Dephasing Estimates for Superconducting Qubits
Parasitic two‑level system (TLS) defects in the amorphous tunnel barriers of superconducting qubits are a major identified source of decoherence, yet device designers lack closed‑form estimates linking defect density and junction geometry to the probability that a device is degraded and to the…
Operational Circularity of Qubit Ontology: Excitations Defined by Their Own Readout
Quantum hardware engineers certify qubits through a closed calibration loop in which control pulses, readout discriminators, and tomographic validation mutually calibrate one another. Because the calibration model is built from data that depend on the very model being calibrated, the loop is…
Semantic Fidelity: An Operational Measure for Borrowed Quantum Terms and Their Scale of Failure
Quantum‑computing projects routinely import terminology from quantum optics, condensed‑matter physics, and high‑energy theory. When the ontological commitments of a borrowed term diverge from the circuit‑model formalism, engineers may make design decisions that are sub‑optimal or infeasible,…
The Exponential Arena: A Reconciled Quantitative Account of Hilbert-Space Growth with Qubit Number
A recurring question in quantum information is what "space" the state of a quantum computer inhabits, and how that space grows as the number of qubits $n$ increases. This paper treats the question quantitatively, formalizing the arena of an $n$-qubit register as the complex projective Hilbert space…
Beyond Pure Dephasing: A Quantitative Analysis of Two-Level Error Correction for Multi-Spin Molecular Qubits
Molecular spin systems exhibit a natural hierarchy of decoherence channels: fast pure dephasing (characterized by the transverse relaxation time T₂) and comparatively slow energy relaxation (characterized by T₁). A recent proposal argues that fault-tolerant quantum computing with molecules requires…
The Valuation Reading of the Qubit Delusion: Is the Adelic Kernel Load-Bearing?
The Qubit Delusion (https://papers.qnfo.org/papers/paper-the-qubit-delusion/) argues that the qubit-gate-circuit model of quantum computation imports a particle ontology inconsistent with quantum field theory, and that the field's failure to deliver commercially viable hardware after $35 billion of…
No Thing There: Control, Readout, and Self-Referential Metrology in Engineered Quantum Systems
Pedagogical bridge between qubit ontology critique and working physics. Explains what control pulses actually manipulate and what readout measures, across superconducting transmon, trapped-ion, and spin qubit platforms. Includes electrical seesaw analogy, self-referential metrology formalization,…
The Revolutionary Beginner's Guide to Quantum Computing: Why We Don't Have Quantum Computers Yet — and What the Geometric Alternative Offers
A 20-chapter beginner's guide to quantum computing that starts with an honest question — why don't we have quantum computers yet? — rather than the usual "here's what a qubit is." The guide teaches the standard curriculum (qubits, entanglement, algorithms, error correction) accurately, explains why…
Computational Benchmark of Geometric and Algebraic Models for Multi-Qubit State Representation
The Bloch sphere provides a powerful yet fundamentally limited geometric model for quantum states, excelling at single-qubit intuition but failing to represent the multi-qubit entanglement that powers quantum advantage. This work addresses the critical tension between the cognitive simplicity of…
Continuous Signal Processing for Josephson Junction Readout
The prevailing architecture of superconducting quantum information processing relies heavily on the Josephson junction, yet its dual role as both a qubit-defining non-linear inductor and a latching readout element creates a fundamental tension in measurement dynamics. While the former enables the…
Tweezers Magnet
The dominant paradigm in advanced computing, particularly in the quantum domain, relies on the precise external control of individual, fragile information carriers—a particle-centric approach analogous to arranging iron filings with tweezers. This method is fundamentally constrained by its reliance…
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