Scientists / Open questions

利昂·库珀

Leon N. Cooper

超导理论、神经科学

1972 年诺贝尔物理学奖

39 个问题

  1. Completing the Cooper–Van Vechten account of quantum measurement: thermodynamic irreversibility, basis selection, and reversible measurements within unitary quantum theory

  2. Verification or refutation of the conscious-observer assumption in Cooper's no-collapse interpretation of quantum measurement

  3. Robustness and calibration of CORaL's significant-set inference for ranked-list comparison: gene dependence, step-size selection, and operating regimes

  4. Zero radius of convergence of the many-fermion linked-cluster expansion: extending Cooper's strongly coupled result to the full many-body problem and the fate of normal solutions at repulsive coupling

  5. Completing and experimentally validating the unified calcium-based model of NMDA receptor-dependent bidirectional synaptic plasticity: metaplastic stabilization, non-NMDA calcium sources, and the predicted long-delay pre-post LTD window

  6. Realistic stereo statistics and multi-component PCA in unsupervised models of ocular dominance and disparity tuning (questions left open by Shouval, Intrator, Law & Cooper, 1996)

  7. Robustness and generality of orientation and ocular-dominance map formation in the BCM lateral-inhibition network trained on natural stereo images (Shouval–Intrator–Cooper, 1997)

  8. Origin and experimental test of the lateral-connectivity scaffold for developing orientation preference maps in primary visual cortex

  9. Multiple calcium entry pathways in the calcium-dependent plasticity model with calcium homeostasis: consequences for synaptic stability, input selectivity, and pathway dominance

  10. Realistic-noise robustness, waveform generality, and SNR-estimate sensitivity of SNR-dependent unmatched-filter time-of-arrival estimation in high noise

  11. Presynaptic release probability versus postsynaptic efficacy as the carrier of simple-cell receptive-field structure in visual cortex: an untested experimental discrimination and its consequences for spatiotemporal dynamics and coding under short-term synaptic depression

  12. Completing the Bienenstock-Cooper-Munro theory of synaptic modification: first-principles form of the modification function, cortical circuitry, modulatory control, and general stability

  13. Quantifying and causally testing deprived-eye lateral geniculate nucleus firing-rate correlations in monocular-inactivation ocular-dominance plasticity

  14. Open problems in the non-equilibrium chemical master equation theory of phosphorylation–dephosphorylation cycles: energy cost of bistability, n-step generalization, cycle variants, transient dynamics, and flux-controlled plasticity

  15. Establishing whether stochastic short-term synaptic and dendritic dynamics uniquely account for multi-spike synaptic plasticity in visual cortex and hippocampus

  16. Open questions from Perrone and Cooper's Generalized Ensemble Method: finite-sample weight estimation, principled member selection, and ensemble saturation

  17. Biophysical implementation of the BCM moving modification threshold and its functional dependence on postsynaptic activity

  18. General analytical theory of the AOWA adaptive time-of-flight estimation scheme: multi-outlier-class extension, robustness to classifier mis-specification, and worst-case energy

  19. Correlated-noise-induced long lifetimes of BCM synapses: robustness of the spectral mechanism beyond the linearized, uniform-correlation, thermodynamic-limit analysis, and its mapping to monocular-deprivation experiments

  20. Quantitative validation of the calcium-dependent GluR1 phosphorylation model of bidirectional synaptic plasticity in intact dendritic spines

  21. Regimes of validity and physiological grounding of the calcium-control-hypothesis (CaDP) framework of synaptic plasticity: parameters, rate-rule averaging, and the predicted pre-before-post LTD window

  22. Open quantitative core of the Cooper–Stölan strongly coupled shell model: exact cycle-weight function f(α) with its analytic continuation f(−1), and the magnitude of the omitted non-BCS graphs

  23. Breakdown of flux quantization by generalized pairing in superconducting cylinders: the Schwartz–Cooper intermediate-flux regime

  24. Robustness of direction-selectivity formation in natural-scene environments to multi-delay architectures and cortical recurrence

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