Abstract
In categorical quantum mechanics, classical structures characterize the classical interfaces of quantum resources on one hand, while on the other hand giving rise to some quantum phenomena. In the standard Hilbert space model of quantum theories, classical structures over a space correspond to its orthonormal bases. In the present paper, we show that classical structures in the category of relations correspond to direct sums of abelian groups. Although relations are, of course, not an interesting model of quantum computation, this result has some interesting computational interpretations. If relations are viewed as denotations of nondeterministic programs, it uncovers a wide variety of non-standard quantum structures in this familiar area of classical computation. Ironically, it also opens up a version of what in philosophy of quantum mechanics would be called an ontic-epistemic gap, as it provides no interface to these nonstandard quantum structures.
This is a preview of subscription content, log in via an institution.
Buying options
Tax calculation will be finalised at checkout
Purchases are for personal use only
Learn about institutional subscriptionsPreview
Unable to display preview. Download preview PDF.
References
Abramsky, S.: No-cloning in categorical quantum mechanics. In: Gay, S., Mackie, I. (eds.) Semantical Techniques in Quantum Computation, 32 p. Cambridge University Press, Cambridge (2008) (to appear)
Abramsky, S., Coecke, B.: A categorical semantics of quantum protocols. In: Proceedings of the 19th Annual IEEE Symposium on Logic in Computer Science: LICS 2004, pp. 415–425. IEEE Computer Society, Los Alamitos (2004), arXiv:quant-ph/0402130
Abramsky, S., Gay, S., Nagarajan, R.: Interaction categories and the foundations of typed concurrent programming. In: Broy, M. (ed.) Proceedings of the 1994 Marktoberdorf Summer Sxhool on Deductive Program Design, pp. 35–113. Springer, Heidelberg (1996)
Barr, M., Grillet, P., van Osdol, D. (eds.): Exact Categories and Categories of Sheaves. Lecture Notes in Mathematics, vol. 236. Springer, Heidelberg (1971)
Carboni, A., Walters, R.F.C.: Cartesian bicategories, I. J. of Pure and Applied Algebra 49, 11–32 (1987)
Church, A.: A formulation of the simple theory of types. The Journal of Symbolic Logic 5(2), 56–68 (1940)
Coecke, B., Duncan, R.: Interacting quantum observables. In: Aceto, L., Damgård, I., Goldberg, L.A., Halldórsson, M.M., Ingólfsdóttir, A., Walukiewicz, I. (eds.) ICALP 2008, Part II. LNCS, vol. 5126, pp. 298–310. Springer, Heidelberg (2008)
Coecke, B., Pavlovic, D., Vicary, J.: A new description of orthogonal bases. Math. Structures in Comp. Sci., 13 (2008) (to appear), arXiv:0810.0812
Coecke, B., Edwards, W.: Toy quantum categories. In: Coecke, B., Panangaden, P. (eds.) Proceedings of the 2008 QPL-DCM Workshop, pp. 25–35. Springer, Heidelberg (2008), arXiv:0808.1037
Coecke, B., Pavlovic, D.: Quantum measurements without sums. In: Chen, G., Kauffman, L., Lamonaco, S. (eds.) Mathematics of Quantum Computing and Technology. Taylor and Francis, Abington (2007), arxiv:quant-ph/0608035
Dieks, D.: Communication by EPR devices. Physics Letters A 92(6), 271–272 (1982)
Coecke, B., Paquette, É.O., Pavlovic, D.: Classical and quantum structuralism. In: Gay, S., Mackie, I. (eds.) Semantical Methods in Quantum Computation, 42 p. Cambridge University Press, Cambridge (2008) (to appear)
Freyd, P.J., Scedrov, A.: Categories, Allegories. North Holland Publishing Company, Amsterdam (1991)
Gödel, K.: Über formal unentscheidbare Sätze der Principia Mathematica und verwandter Systeme. I. Monatshefte fr Mathematik und Physik 38, 173–198 (1931)
Joyal, A., Street, R.: An introduction to Tannaka duality and quantum groups. In: Carboni, A., Pedicchio, M.C., Rosolini, G. (eds.) Category Theory Proceedings, Como 1990. LNM, vol. 1488, pp. 411–492. Springer, Berlin (1991)
Kleene, S.C.: Recursive predicates and quantifiers. Transactions of the American Mathematical Society 53(1), 41–73 (1943)
Kock, J.: Frobenius Algebras and 2D Topological Quantum Field Theories. London Mathematical Society Student Texts, vol. 59. Cambridge University Press, Cambridge (2004)
William Lawvere, F.: Ordinal sums and equational doctrines. In: Seminar on Triples, Categories and Categorical Homology Theory. Lecture Notes in Mathematics, vol. 80, pp. 141–155. Springer, Heidelberg (1969)
Moggi, E.: Notions of computation and monads. Inf. Comput. 93(1), 55–92 (1991)
Pati, A.K., Braunstein, S.L.: Impossibility of deleting an unknown quantum state. Nature 404, 164–165 (2000)
Pavlovic, D.: Geometry of abstraction in quantum computation. In: TANCL 2007 (2007) (manuscript)
Pavlovic, D.: Maps I: relative to a factorisation system. J. Pure Appl. Algebra 99, 9–34 (1995)
Pavlovic, D.: Maps II: Chasing diagrams in categorical proof theory. J. of the IGPL 4(2), 1–36 (1996)
Pavlovic, D.: Categorical logic of names and abstraction in action calculus. Math. Structures in Comp. Sci. 7, 619–637 (1997)
Pavlovic, D., Abramsky, S.: Specifying interaction categories. In: Moggi, E., Rosolini, G. (eds.) CTCS 1997. LNCS, vol. 1290, pp. 147–158. Springer, Heidelberg (1997)
Selinger, P.: Dagger compact closed categories and completely positive maps. Electron. Notes Theor. Comput. Sci. 170, 139–163 (2007)
Spekkens, R.W.: Evidence for the epistemic view of quantum states: A toy theory. Phys. Rev. A 75, 30 p. (2007)
Vicary, J.: Categorical formulation of quantum algebras, 37 p. (2008)
Wootters, W.K., Zurek, W.H.: A single quantum cannot be cloned. Nature 299, 802–803 (1982)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Pavlovic, D. (2009). Quantum and Classical Structures in Nondeterminstic Computation. In: Bruza, P., Sofge, D., Lawless, W., van Rijsbergen, K., Klusch, M. (eds) Quantum Interaction. QI 2009. Lecture Notes in Computer Science(), vol 5494. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-00834-4_13
Download citation
DOI: https://doi.org/10.1007/978-3-642-00834-4_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-00833-7
Online ISBN: 978-3-642-00834-4
eBook Packages: Computer ScienceComputer Science (R0)