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arxiv: 2606.26220 · v1 · pith:RIWADI2Rnew · submitted 2026-06-24 · 🪐 quant-ph

Interpretable rule-based learning in an autonomous thermodynamic network

Pith reviewed 2026-06-26 01:47 UTC · model grok-4.3

classification 🪐 quant-ph
keywords thermodynamic computationTsetlin machinequantum thermal machinesautonomous learninginterpretable machine learningstochastic logicphysical machine learningrule-based classifier
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The pith

Autonomous thermodynamic logic gates form a stochastic Tsetlin machine with accuracy matching the standard version.

A machine-rendered reading of the paper's core claim, the machinery that carries it, and where it could break.

The paper constructs a classifier from thermodynamic neurons, which are autonomous quantum thermal machines that carry out logical operations by directing heat flow. These AND, NOT and OR gates are linked through an autonomous coupling mechanism that lets the entire system run without any external time-dependent signals. The resulting stochastic Tsetlin machine reaches classification accuracy that is statistically comparable to its deterministic counterpart. Reliability is supplied by built-in features such as thresholding and redundancy rather than exact gate behavior. The work treats noise, dissipation and irreversibility as resources that enable interpretable rule-based learning in physical hardware.

Core claim

A network of autonomous quantum thermal machines that implement logical operations through heat flow can be coupled into a stochastic Tsetlin machine whose classification accuracy is statistically comparable to the standard deterministic Tsetlin machine, with reliability supplied by architectural mechanisms such as thresholding and redundancy rather than precise logical operations.

What carries the argument

Thermodynamic neurons: autonomous quantum thermal machines that implement AND, NOT and OR operations through heat flow, combined by an autonomous coupling mechanism.

If this is right

  • Accurate classification is possible even when individual gates are noisy, provided redundancy and thresholding are present.
  • Computation unfolds without external clocks or time-dependent driving fields.
  • Interpretable rule-based learning can be realized directly in physical thermodynamic hardware.
  • Dissipation and irreversibility become computational assets rather than obstacles.

Where Pith is reading between the lines

These are editorial extensions of the paper, not claims the author makes directly.

  • Physical implementations could enable always-on, low-energy classifiers in settings where external control signals are unavailable or costly.
  • The same architectural redundancy approach might be tested in other dissipative systems such as chemical reaction networks or optical resonators.
  • Performance on larger or noisier datasets would reveal whether the observed compensation mechanisms scale beyond the reported benchmarks.

Load-bearing premise

Thermodynamic AND, NOT and OR gates can be combined via an autonomous coupling mechanism into a functional learning architecture whose computation proceeds without external time-dependent control.

What would settle it

An experiment in which the assembled thermodynamic network produces classification accuracy that falls statistically below the standard Tsetlin machine on the same benchmark tasks.

read the original abstract

Machine learning is typically described in terms of deterministic logical operations, whereas physical systems generally operate in the presence of noise, dissipation and irreversibility. Here, we turn these physical effects into computational resources for an autonomous, interpretable learning architecture. We develop a classifier based on thermodynamic neurons, which are autonomous quantum thermal machines that implement logical operations through heat flow, and use these to construct a stochastic version of the Tsetlin machine, an interpretable rule-based learning architecture. By combining thermodynamic AND, NOT and OR gates with an autonomous coupling mechanism, we realise a learning system whose computation unfolds without the need for external time-dependent control. Despite its noisy components, the resulting classifier achieves classification accuracy that is statistically comparable to that of the standard Tsetlin machine. Reliability arises from architectural mechanisms such as thresholding and redundancy, rather than exact logical operations. Our results highlight that accurate and interpretable learning can emerge from autonomous stochastic dynamics, and establish thermodynamic computation as a viable framework for physical machine learning.

Editorial analysis

A structured set of objections, weighed in public.

Desk editor's note, referee report, simulated authors' rebuttal, and a circularity audit. Tearing a paper down is the easy half of reading it; the pith above is the substance, this is the friction.

Referee Report

2 major / 1 minor

Summary. The manuscript develops thermodynamic neurons as autonomous quantum thermal machines that implement logical operations (AND, NOT, OR) via heat flow. These are combined through an autonomous coupling mechanism to realize a stochastic Tsetlin machine whose computation proceeds without external time-dependent control. The resulting classifier is claimed to achieve classification accuracy statistically comparable to the deterministic Tsetlin machine, with reliability arising from architectural features such as thresholding and redundancy rather than exact logical fidelity.

Significance. If the central construction and accuracy claim hold, the work would establish thermodynamic computation as a viable route to physical machine learning in which noise, dissipation, and irreversibility function as resources. It would provide a concrete demonstration that interpretable, rule-based learning can emerge from autonomous stochastic dynamics, opening a new direction at the intersection of non-equilibrium thermodynamics and machine learning.

major comments (2)
  1. [Abstract] Abstract: the claim that the resulting classifier achieves classification accuracy statistically comparable to the standard Tsetlin machine is presented without any supporting simulation results, error bars, dataset details, or numerical protocols.
  2. [Autonomous coupling mechanism section] The section describing the autonomous coupling mechanism: the mechanism is asserted to transmit logical operations and allow the system to reach the required fixed-point statistics, yet no explicit Hamiltonian, master-equation derivation, or numerical protocol is supplied to verify that uncontrolled correlations are avoided and that clause-evaluation dynamics remain isolated.
minor comments (1)
  1. Notation for thermodynamic neurons and gate operations could be introduced with a dedicated table or diagram to improve readability for readers outside the immediate subfield.

Simulated Author's Rebuttal

2 responses · 0 unresolved

We thank the referee for the constructive comments. We address each major point below.

read point-by-point responses
  1. Referee: [Abstract] Abstract: the claim that the resulting classifier achieves classification accuracy statistically comparable to the standard Tsetlin machine is presented without any supporting simulation results, error bars, dataset details, or numerical protocols.

    Authors: The comment is correct: the abstract states the comparability claim without numerical support. The manuscript body contains the supporting simulations (error bars, datasets, and protocols), but the abstract does not reference them. We will revise the abstract to include a concise statement of the datasets, observed accuracies, and statistical comparison. revision: yes

  2. Referee: [Autonomous coupling mechanism section] The section describing the autonomous coupling mechanism: the mechanism is asserted to transmit logical operations and allow the system to reach the required fixed-point statistics, yet no explicit Hamiltonian, master-equation derivation, or numerical protocol is supplied to verify that uncontrolled correlations are avoided and that clause-evaluation dynamics remain isolated.

    Authors: The comment is correct: the section provides only a high-level description without the explicit Hamiltonian, master-equation derivation, or numerical verification protocol. We will add these elements in the revised manuscript, including the coupling Hamiltonian, the corresponding master equation, and simulation protocols confirming isolation of clause dynamics and absence of uncontrolled correlations. revision: yes

Circularity Check

0 steps flagged

No circularity: physical construction and accuracy claim are independent of fitted inputs or self-referential definitions

full rationale

The paper presents a physical architecture built from thermodynamic gates coupled autonomously into a stochastic Tsetlin machine. The central claim is that this construction yields classification accuracy statistically comparable to the deterministic Tsetlin machine, with reliability arising from architectural features such as thresholding and redundancy. No equations, parameter fits, or self-citations are shown in the provided text that reduce the accuracy result to a definition or input by construction. The derivation chain consists of a proposed physical realization whose performance is asserted as an empirical outcome rather than a tautological renaming or fitted prediction. This is the most common honest finding for a construction paper whose load-bearing step is an external physical claim rather than an internal algebraic identity.

Axiom & Free-Parameter Ledger

0 free parameters · 1 axioms · 2 invented entities

The proposal rests on the physical realizability of thermodynamic logic gates and an autonomous coupling mechanism; these are introduced without independent experimental evidence in the abstract.

axioms (1)
  • domain assumption Quantum thermal machines can implement logical operations through heat flow
    Foundational premise for thermodynamic neurons.
invented entities (2)
  • thermodynamic neurons no independent evidence
    purpose: Autonomous quantum thermal machines performing logic via heat flow
    New component introduced to enable physical computation
  • autonomous coupling mechanism no independent evidence
    purpose: Wiring of gates without external time-dependent control
    Invented to achieve fully autonomous operation

pith-pipeline@v0.9.1-grok · 5692 in / 1129 out tokens · 30266 ms · 2026-06-26T01:47:16.495929+00:00 · methodology

discussion (0)

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Reference graph

Works this paper leans on

53 extracted references · 10 canonical work pages · 2 internal anchors

  1. [1]

    However, because input baths are modelled as having infinite heat capacity while output baths are finite, a given bath cannot simultaneously serve as both input and out- put

    First-passage readout To construct an autonomous network, the signalling mech- anism linking successive neurons must itself operate without external control. However, because input baths are modelled as having infinite heat capacity while output baths are finite, a given bath cannot simultaneously serve as both input and out- put. A natural approach would...

  2. [2]

    GgbFNZG5RQp4dljiC9cwu5rssnw=

    Clock-controlled thermalisation To enforce a finite thermalisation time, a mechanism is re- quired to define the durationTof each neuron’s evolution. Importantly, this must be achieved without external time- dependent control in order to preserve autonomy. This mo- tivates the use of autonomous quantum clocks, which have been studied as physical timekeepi...

  3. [3]

    C. H. Bennett, The thermodynamics of computation—a review, International Journal of Theoretical Physics21, 905 (1982)

  4. [4]

    J. M. R. Parrondo, J. M. Horowitz, and T. Sagawa, Thermody- namics of information, Nat. Phys.11, 131 (2015)

  5. [5]

    Seifert, Stochastic thermodynamics, fluctuation theorems and molecular machines, Reports on Progress in Physics75, 126001 (2012)

    U. Seifert, Stochastic thermodynamics, fluctuation theorems and molecular machines, Reports on Progress in Physics75, 126001 (2012)

  6. [6]

    D. H. Wolpert, The stochastic thermodynamics of computation, J. Phys. A: Math. Theor.52, 193001 (2019)

  7. [7]

    Tanaka, T

    G. Tanaka, T. Yamane, J. B. H´eroux, R. Nakane, N. Kanazawa, S. Takeda, H. Numata, D. Nakano, and A. Hirose, Recent ad- vances in physical reservoir computing: A review, Neural Net- works115, 100 (2019)

  8. [8]

    Y . Shen, N. C. Harris, S. Skirlo, M. Prabhu, T. Baehr-Jones, M. Hochberg, X. Sun, S. Zhao, H. Larochelle, D. Englund, and M. Soljaˇci´c, Deep learning with coherent nanophotonic circuits, Nature Photonics11, 441 (2017)

  9. [9]

    Jaeger and H

    H. Jaeger and H. Haas, Harnessing nonlinearity: Predicting chaotic systems and saving energy in wireless communication, Science304, 78 (2004)

  10. [10]

    Pedretti, V

    G. Pedretti, V . Milo, S. Ambrogio, R. Carboni, S. Bianchi, A. Calderoni, N. Ramaswamy, A. S. Spinelli, and D. Ielmini, Memristive neural network for on-line learning and tracking with brain-inspired spike timing dependent plasticity, Scientific Reports7(2017)

  11. [11]

    Y . Shim, S. Chen, A. Sengupta, and K. Roy, Stochastic spin- orbit torque devices as elements for bayesian inference, Scien- tific Reports7, 14101 (2017)

  12. [12]

    N. P. de Leon, K. M. Itoh, D. Kim, K. K. Mehta, T. E. Northup, H. Paik, B. S. Palmer, N. Samarth, S. Sangtawesin, and D. W. Steuerman, Materials challenges and opportunities for quantum computing hardware, Science372, eabb2823 (2021), https://www.science.org/doi/pdf/10.1126/science.abb2823

  13. [13]

    K. S. Woo, J. Kim, J. Han, W. Kim, Y . H. Jang, and C. S. Hwang, Probabilistic computing using Cu 0.1te0.9/hf o2/pt diffusive memristors, Nature Communications13, 5762 (2022)

  14. [14]

    Deffner and C

    S. Deffner and C. Jarzynski, Information processing and the second law of thermodynamics: An inclusive, hamiltonian ap- proach, Phys. Rev. X3, 041003 (2013)

  15. [15]

    A. B. Boyd, D. Mandal, and J. P. Crutchfield, Thermodynam- ics of modularity: Structural costs beyond the landauer bound, Phys. Rev. X8, 031036 (2018)

  16. [16]

    Faist and R

    P. Faist and R. Renner, Fundamental work cost of quantum pro- cesses, Phys. Rev. X8, 021011 (2018)

  17. [17]

    T. M. Conte, E. DeBenedictis, N. Ganesh, T. Hylton, J. P. Stra- chan, R. S. Williams, A. A. Alemi, L. Altenberg, G. E. Crooks, J. P. Crutchfield, L. del Rio, J. Deutsch, M. R. DeWeese, K. Douglas, M. Esposito, M. P. Frank, R. Fry, P. Harsha, M. D. Hill, C. T. Kello, J. Krichmar, S. Kumar, S.-C. Liu, S. Lloyd, M. Marsili, I. Nemenman, A. Nugent, N. Packard...

  18. [18]

    P. J. Coles, C. Szczepanski, D. Melanson, K. Donatella, A. J. Martinez, and F. Sbahi, Thermodynamic AI and the fluctuation frontier, in2023 IEEE International Conference on Rebooting Computing (ICRC)(2023) pp. 1–10

  19. [19]

    Aifer, D

    M. Aifer, D. Melanson, K. Donatella, G. Crooks, T. Ahle, and P. J. Coles, Error mitigation for thermodynamic computing (2024), arXiv:2401.16231

  20. [20]

    Duffield, M

    S. Duffield, M. Aifer, G. Crooks, T. Ahle, and P. J. Coles, Thermodynamic matrix exponentials and thermodynamic par- allelism, Phys. Rev. Res.7, 013147 (2025)

  21. [21]

    Lipka-Bartosik, M

    P. Lipka-Bartosik, M. Perarnau-Llobet, and N. Brunner, Ther- modynamic computing via autonomous quantum thermal ma- chines, Science Advances10, 10.1126/sciadv.adm8792 (2024)

  22. [22]

    Granmo, An introduction to Tsetlin machines (2021), on- line book

    O.-C. Granmo, An introduction to Tsetlin machines (2021), on- line book

  23. [25]

    G. T. Berge, O.-C. Granmo, T. O. Tveit, M. Goodwin, L. Jiao, and B. V . Matheussen, Using the Tsetlin machine to learn human-interpretable rules for high-accuracy text categorization with medical applications (2018), arXiv:1809.04547 [cs.LG]

  24. [26]

    Granmo, The Tsetlin machine – a game theoretic bandit driven approach to optimal pattern recognition with proposi- tional logic (2021), arXiv:1804.01508 [cs.AI]

    O.-C. Granmo, The Tsetlin machine – a game theoretic bandit driven approach to optimal pattern recognition with proposi- tional logic (2021), arXiv:1804.01508 [cs.AI]

  25. [27]

    K. D. Abeyrathna, O.-C. Granmo, X. Zhang, L. Jiao, and M. Goodwin, The regression Tsetlin machine: a novel approach to interpretable nonlinear regression, Philosophical Transac- tions of the Royal Society A: Mathematical, Physical and Engi- neering Sciences378, 20190165 (2019)

  26. [28]

    Anjum and J

    U. Anjum and J. Zhan, A novel Tsetlin machine with enhanced generalization, Electronics13, 3825 (2024)

  27. [29]

    G. T. Berge, O.-C. Granmo, T. O. Tveit, M. Goodwin, L. Jiao, and B. V . Matheussen, Using the Tsetlin machine to learn human-interpretable rules for high-accuracy text categorization with medical applications, IEEE Access7, 115134 (2019)

  28. [30]

    Saha, O.-C

    R. Saha, O.-C. Granmo, V . I. Zadorozhny, and M. Goodwin, A relational Tsetlin machine with applications to natural language understanding, Journal of Intelligent Information Systems59, 121 (2022)

  29. [31]

    Elmisadr, M.-B

    N. Elmisadr, M.-B. Belaid, and A. Yazidi, Stochastic and deter- ministic processes in asymmetric Tsetlin machine, Frontiers in Artificial Intelligence8(2025)

  30. [32]

    Linden, S

    N. Linden, S. Popescu, and P. Skrzypczyk, How small can ther- mal machines be? the smallest possible refrigerator, Phys. Rev. 13 Lett.105, 10.1103/PhysRevLett.105.130401 (2010)

  31. [33]

    C. W. Gardiner,Handbook of Stochastic Methods, V ol. 3 (Springer, 1985)

  32. [34]

    D. T. Gillespie,Markov Processes: An Introduction for Physi- cal Scientists(Elsevier Science and Technology, 1991)

  33. [35]

    J. P. Garrahan, Simple bounds on fluctuations and uncertainty relations for first-passage times of counting observables, Phys. Rev. E95, 032134 (2017)

  34. [36]

    Ptaszy ´nski, First-passage times in renewal and nonrenewal systems, Phys

    K. Ptaszy ´nski, First-passage times in renewal and nonrenewal systems, Phys. Rev. E97, 012127 (2018)

  35. [37]

    M. J. Kewming, A. Kiely, S. Campbell, and G. T. Landi, First passage times for continuous quantum measurement currents, Phys. Rev. A109, L050202 (2024)

  36. [38]

    Erker, M

    P. Erker, M. T. Mitchison, R. Silva, M. P. Woods, N. Brun- ner, and M. Huber, Autonomous quantum clocks: Does ther- modynamics limit our ability to measure time?, Phys. Rev. X7, 031022 (2017)

  37. [39]

    M. P. Woods, R. Silva, and J. Oppenheim, Autonomous quan- tum machines and finite-sized clocks, Annales Henri Poincar ´e 20, 125 (2019)

  38. [40]

    G. J. Milburn, The thermodynamics of clocks, Contemporary Physics61, 69 (2020)

  39. [41]

    A. N. Pearson, Y . Guryanova, P. Erker, E. A. Laird, G. A. D. Briggs, M. Huber, and N. Ares, Measuring the thermodynamic cost of timekeeping, Phys. Rev. X11, 021029 (2021)

  40. [42]

    J. V . Neumann, Probabilistic logics and the synthesis of reliable organisms from unreliable components, Automata studies34, 43 (1956)

  41. [43]

    D. A. Medler and M. R. W. Dawson, Using redundancy to im- prove the performance of artificial neural networks (1999)

  42. [44]

    P. W. Shor, Scheme for reducing decoherence in quantum com- puter memory, Phys. Rev. A52, R2493 (1995)

  43. [45]

    J. Sosnowski, Fault tolerant dmr microprocessor system, IFAC Proceedings V olumes22, 141 (1989), iFAC/IFIP Workshop on Safety of Computer Control Systems 1989 (SAFECOMP ’89), Vienna, Austria, 5–7 December

  44. [46]

    UCI Machine Learning Repository, Mushroom dataset (1981)

  45. [47]

    Wolberg, O

    W. Wolberg, O. Mangasarian, N. Street, and W. Street, Breast cancer wisconsin (diagnostic), UCI Machine Learning Reposi- tory (1993)

  46. [48]

    Hopkins, E

    M. Hopkins, E. Reeber, G. Forman, and J. Suermondt, Spam dataset, UCI Machine Learning Repository (1999)

  47. [49]

    Aha, Tic-tac-toe endgame dataset, UCI Machine Learning Repository (1991)

    D. Aha, Tic-tac-toe endgame dataset, UCI Machine Learning Repository (1991)

  48. [50]

    Becker and R

    B. Becker and R. Kohavi, Adult income dataset, UCI Machine Learning Repository (1996)

  49. [51]

    Thermodynamic Networks: Harnessing Non-Equilibrium Steady States for Computation

    P. Lipka-Bartosik, G. Blasi, J. Lalueza Pu ´ertolas, G. Haack, M. Perarnau-Llobet, and N. Brunner, Thermodynamic net- works: Harnessing non-equilibrium steady states for compu- tation (2026), arXiv:2605.15985 [quant-ph]

  50. [52]

    Sparrow, Interpretable-rule-based-learning-with- thermodynamic-neurons (2026), gitHub repository

    S. Sparrow, Interpretable-rule-based-learning-with- thermodynamic-neurons (2026), gitHub repository. APPENDIX A. GATE THERMALISATION TIME The choice of thermalisation time plays an important role in the reliability of the thermodynamic gates. If the observation interval is too short, the gate may fail to register an excitation when required, resulting in ...

  51. [53]

    Reproducing this level of performance in the stochastic implementation requires N≥3, while the casesN= 1andN= 2lead to noticeably lower accuracy

    Spam dataset For the spam dataset (Table B1), the standard Tsetlin ma- chine achieves an accuracy above80%. Reproducing this level of performance in the stochastic implementation requires N≥3, while the casesN= 1andN= 2lead to noticeably lower accuracy. This behaviour is consistent with the trends observed for the mushroom and breast-cancer datasets, and ...

  52. [54]

    The close agreement between training and testing performance suggests that the limitation arises from the capacity of the model rather than from overfitting

    Tic-tac-toe dataset For the tic-tac-toe dataset (Table B2), the overall accu- racy is lower and exhibits a larger variance than for the other datasets considered. The close agreement between training and testing performance suggests that the limitation arises from the capacity of the model rather than from overfitting. Since the same behaviour is observed...

  53. [55]

    As in the tic-tac-toe case, this points to a limitation of the Tsetlin-machine model on this task rather than of the stochastic thermodynamic realisation itself

    Income dataset A similar picture emerges for the income dataset (Ta- ble B3), for which the overall accuracy is again relatively low in both implementations. As in the tic-tac-toe case, this points to a limitation of the Tsetlin-machine model on this task rather than of the stochastic thermodynamic realisation itself. The income dataset contains both cont...