Abstract
This article elaborates on entanglement entropy and quantum information theory of geometric flows of (relativistic) Lagrange–Hamilton mechanical systems. A set of basic geometric and quantum mechanics and probability concepts together with methods of computation are developed in general covariant form for curved phase spaces modelled as cotangent Lorentz bundles. The constructions are based on ideas relating the Grigori Perelman’s entropy for geometric flows and associated statistical thermodynamic systems to the quantum von Neumann entropy, classical and quantum relative and conditional entropy, mutual information, etc. We formulate the concept of the entanglement entropy of quantum geometric information flows and study properties and inequalities for quantum, thermodynamic and geometric entropies characterizing such systems.
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Notes
We follow such conventions: the “horizontal” indices, h-indices, run values \( i,j,k,\ldots =1,2,3,4;\) the vertical indices, v-vertical, run values \( a,b,c\ldots =5,6,7,8\); respectively, the v-indices can be identified/ contracted with h-indices 1, 2, 3, 4 for lifts on total (co) bundles, when \(\alpha =(i,a),\beta =(j,b),\gamma =(k,c),\ldots =1,2,3,\ldots 8.\) There are used letters labeled by an abstract left up/low symbol “\(\ ^{\shortmid }\)” (for instance, \(\ ^{\shortmid }u^{\alpha }\) and \(\ ^{\shortmid }g_{\alpha \beta }) \) in order to emphasize that certain geometric/ physical objects are defined on \(T^{*}V.\) Similar formulas can be derived on TV for geometric objects labeled without “\(\ ^{\shortmid }\).” Boldface symbols are used for geometric objects on spaces endowed with nonlinear connection structure [see below formula (3)].
The coefficients of the canonical N-connection are computed following formulas \(\ ^{\shortmid }\widetilde{\mathbf {N}}=\left\{ \ ^{\shortmid }\widetilde{N} _{ij}:=\frac{1}{2}\left[ \{\ \ ^{\shortmid }\widetilde{g}_{ij},\widetilde{H} \}-\frac{\partial ^{2}\widetilde{H}}{\partial p_{k}\partial x^{i}}\ ^{\shortmid }\widetilde{g}_{jk}-\frac{\partial ^{2}\widetilde{H}}{\partial p_{k}\partial x^{j}}\ ^{\shortmid }\widetilde{g}_{ik}\right] \right\} \), where \(\ \ ^{\shortmid }\widetilde{g}_{ij}\) is inverse to \(\ \ ^{\shortmid } \widetilde{g}^{ab}\) (2). The canonical N-adapted (co) frames are
$$\begin{aligned} \ ^{\shortmid }\widetilde{\mathbf {e}}_{\alpha }=\left( \ ^{\shortmid }\widetilde{ \mathbf {e}}_{i}=\frac{\partial }{\partial x^{i}}-\ ^{\shortmid }\widetilde{N} _{ia}(x,p)\frac{\partial }{\partial p_{a}},\ ^{\shortmid }e^{b}=\frac{ \partial }{\partial p_{b}}\right) ;\ \ ^{\shortmid }\widetilde{\mathbf {e}}^{\alpha }=\left( \ ^{\shortmid }e^{i}=\mathrm{d}x^{i},\ ^{\shortmid }\mathbf {e}_{a}=\mathrm{d}p_{a}+\ ^{\shortmid }\widetilde{N}_{ia}(x,p)\mathrm{d}x^{i}\right) , \end{aligned}$$being characterized by corresponding anholonomy relations \(\ [\ ^{\shortmid } \widetilde{\mathbf {e}}_{\alpha },\ ^{\shortmid }\widetilde{\mathbf {e}} _{\beta }]=\ ^{\shortmid }\widetilde{\mathbf {e}}_{\alpha }\ ^{\shortmid } \widetilde{\mathbf {e}}_{\beta }-\ ^{\shortmid }\widetilde{\mathbf {e}}_{\beta }\ ^{\shortmid }\widetilde{\mathbf {e}}_{\alpha }=\ ^{\shortmid }\widetilde{W} _{\alpha \beta }^{\gamma }\ ^{\shortmid }\widetilde{\mathbf {e}}_{\gamma },\) with anholonomy coefficients \(\widetilde{W}_{ia}^{b}=\partial _{a}\widetilde{ N}_{i}^{b},\) \(\widetilde{W}_{ji}^{a}=\widetilde{\Omega }_{ij}^{a},\) and \(\ ^{\shortmid }\widetilde{W}_{ib}^{a}=\partial \ ^{\shortmid }\widetilde{N} _{ib}/\partial p_{a}\) and \(\ ^{\shortmid }\widetilde{W}_{jia}= {\ ^{\shortmid }}\widetilde{\Omega }_{ija}.\) Such a frame is holonomic (integrable) if the respective anholonomy coefficients are zero.
For simplicity, we shall write, for instance, \(\ ^{\shortmid }\widetilde{ \mathbf {N}}(\tau )\) instead of \(\ ^{\shortmid }\widetilde{\mathbf {N}}(\tau ,\ ^{\shortmid }u)\) if that will not result in ambiguities. Relativistic nonholonomic phase spacetimes can be enabled with necessary types double nonholonomic \((2+2)+(2+2)\) and \((3+1)+(3+1)\) splitting [17, 28, 35,36,37]. Local \((3+1)+(3+1)\) coordinates are labeled in the form \(\ ^{\shortmid }u=\{\ ^{\shortmid }u^{\alpha }=\ ^{\shortmid }u^{\alpha _{s}}=(x^{i_{1}},y^{a_{2}};p_{a_{3}},p_{a_{4}})=(x^{\grave{\imath } },u^{4}=y^{4}=t;p_{\grave{a}},p_{8}=E)\}\) for \(i_{1},j_{1},k_{1},\ldots =1,2;\) \( a_{1},b_{1},c_{1},\ldots =3,4;\) \(a_{2},b_{2},c_{2},\ldots =5,6;\) \( a_{3},b_{3},c_{3},\ldots =7,8.\) The indices \(\grave{\imath },\grave{j},\grave{k} ,\ldots =1,2,3,\) respectively, \(\grave{a},\grave{b},\grave{c},\ldots =5,6,7\) can be used for corresponding spacelike hyper surfaces on a base manifold and typical cofiber.
Hereafter, we shall not write such dependencies in explicit form if that will not result in ambiguities.
We use the symbol r for the replica parameter (and not n as in the typical works in information theory) because the symbol n is used in our works for the dimension of base manifolds.
References
Preskill, J.: Lecture notes. http://www.theory.caltech.edu/~preskill/ph219/index.html#lecture
Solodukhin, S.N.: Entanglement entropy of black holes. Living Rev. Relativ. 14, 8 (2011). arXiv:1104.3712
Aolita, L., de Melo, F., Davidovich, L.: Opens-system dynamics of entanglement. Rep. Progr. Phys. 78, 042001 (2015). arXiv:1402.3713
Ionicioiu, R.: Schrödinger’s cat: where does the entanglement come from? Quanta 6, 57–60 (2017). arXiv:1603.07986
Stoica, O.C.: Revisiting the black hole entropy and information paradox. Adv. High. Energy Phys., art. ID 4130417 (2018). arXiv:1807.05864
Nishioka, T.: Entanglement entropy: holography and renormalization group. Rev. Mod. Phys. 90, 03500 (2018). arXiv:1801.10352
Witten, E.: Notes on some entanglement properties of quantum field theory. Rev. Mod. Phys. 90, 45003 (2018). arXiv:1803.04993
Witten, E.: A mini-introduction to information theory. arXiv:1805.11965
Ecker, C.: Entanglement Entropy from Numerical Holography, Ph.D. thesis. arXiv:1809.05529
Nielsen, M.A., Chuang, I.L.: Quantum Computation and Quantum Information, 10th Anniversary edn. Cambridge University Press, Cambridge (2010)
Ryu, S., Takayanagi, T.: Holographic derivation of entanglement entropy from AdS/CFT. Phys. Rev. Lett. 96, 181602 (2006). arXiv:hep-th/0603001
Vidal, G., Latorre, J.I., Rico, E., Kitaev, A.: Entanglement in quantum critical phenomena. Phys. Rev. Lett. 90, 227902 (2003). arXiv:quant-ph/0211074
Kitaev, A., Preskill, J.: Topological entanglement entropy. Phys. Rev. Lett. 96, 110404 (2006). arXiv:hep-th/0510092
Fendley, P., Fisher, M.P.A., Nayak, C.: Topological entanglement entropy from the holographic partition function. J. Stat. Phys. 126, 1111 (2007). arXiv:cond-mat/0609072
Van Raamsdonk, M.: Building up spacetime with quantum entanglement. Gen. Relat. Gravity 42, 2323 (2010) [Int. J. Mod. Phys. D 19, 2429 (2010) ]; arXiv:1005.3035
Maldacena, J., Susskind, L.: Cool horizons for entangled black holes. Fortschr. Phys. 61, 781–811 (2013). arXiv:1306.0533
Vacaru, S.: Entropy functionals for nonholonomic geometric flows, quasiperiodic Ricci solitons, and emergent gravity. arXiv:1903.04920
Vacaru, S., Bubuianu, L.: Exact solutions for E. Verlinde emergent gravity and generalized G. Perelman entropy for geometric flows. arXiv:1904.05149
Perelman, G.: The entropy formula for the Ricci flow and its geometric applications. arXiv:math.DG/0211159
Perelman, G.: Ricci flow with surgery on three-manifolds. arXiv:math.DG/0303109
Perelman, G.: Finite extinction time for the solutions to the Ricci flow on certain three-manifolds. arXiv:math.DG/0307245
Hamilton, R.S.: Three-manifolds with positive Ricci curvature. J. Differ. Geom. 17, 255–306 (1982)
Hamilton, R.S.: The Ricci flow on surfaces. Math Gen Relativ Contemp Math 71, 237–262 (1988)
Hamilton, R.S.: In: Surveys in Differential Geometry, vol. 2, pp. 7–136. International Press, Vienna (1995)
Friedan, D.: Nonlinear Models in \(2+\varepsilon \) Dimensions, Ph.D. Thesis (Berkely) LBL-11517, UMI-81-13038 (1980)
Friedan, D.: Nonlinear models in \(2+\varepsilon \) dimensions. Phys. Rev. Lett. 45, 1057–1060 (1980)
Friedan, D.: Nonlinear models in \(2+\varepsilon \) dimensions. Ann. Phys. 163, 318–419 (1985)
Bubuianu, L., Vacaru, S.: Black holes with MDRs and Bekenstein-Hawking and Perelman entropies for Finsler-Lagrange-Hamilton-spaces. Ann. Phys. N. Y. 404, 10–38 (2019). arXiv:1812.02590
Vacaru, S.: Geometric information flows and G. Perelman entropy for relativistic classical and quantum mechanical systems [under elaboration]
Cao, H.-D., Zhu, H.-P.: A complete proof of the Poincaré and geometrization conjectures–application of the Hamilton-Perelman theory of the Ricci flow. Asian J. Math. 10, 165–495 (2006)
Morgan, J.W., Tian, G.: Ricci Flow and the Poincaré Conjecture. Clay Mathematics Monographs, vol. 3. AMS, Providence (2007)
Kleiner, B., Lott, J.: Notes on Perelman’s papers. Geom. Topol. 12, 2587–2855 (2008)
Vacaru, S.: Locally anisotropic kinetic processes and thermodynamics in curved spaces. Ann. Phys. (N.Y.) 290, 83–123 (2001). arXiv:gr-qc/0001060
Vacaru, S.: Spectral functionals, nonholonomic Dirac operators, and noncommutative Ricci flows. J. Math. Phys. 50, 073503 (2009). arXiv:0806.3814
Rajpoot, S., Vacaru, S.: On supersymmetric geometric flows and R2 inflation from scale invariant supergravity. Ann. Phys. N. Y. 384, 20–60 (2017). arXiv:1606.06884
Ruchin, V., Vacaru, O., Vacaru, S.: Perelman’s W-entropy and statistical and relativistic thermodynamic description of gravitational fields. Eur. Phys. J. C 77, 184 (2017). arXiv:1312.2580
Gheorghiu, T., Ruchin, V., Vacaru, O., Vacaru, S.: Geometric flows and Perelman’s thermodynamics for black ellipsoids in R2 and Einstein gravity theories. Ann. Phys. N. Y. 369, 1–35 (2016). arXiv:1602.08512
Vacaru, S.: On axiomatic formulation of gravity and matter field theories with MDRs and Finsler–Lagrange–Hamilton geometry on (co) tangent Lorentz bundles. arXiv:1801.06444
Bubuianu, L., Vacaru, S.: Axiomatic formulations of modified gravity theories with nonlinear dispersion relations and Finsler–Lagrange–Hamilton geometry. Eur. Phys. J. C 78, 969 (2018)
Vacaru, S.: Nonholonomic Ricci flows: II. Evolution equations and dynamics. J. Math. Phys. 49, 043504 (2008). arXiv:math.DG/0702598
Vacaru, S.: The entropy of Lagrange–Finsler spaces and Ricci flows. Rep. Math. Phys. 63, 95–110 (2009). arXiv:math.DG/0701621
Ruppeiner, G.: Riemannian geometry in thermodynamic fluctuation theory, Rev. Mod. Phys. 67, 605–659 (1995), Erratum: 68 (1996) 313
Quevedo, H.: Geometrothermodynamics. J. Math. Phys. 48, 013506 (2007)
Vacaru, S.: Nonholonomic relativistic diffusion and exact solutions for stochastic Einstein spaces. Eur. Phys. J. P. 127, 32 (2012)
Castro Perelman, C.: Thermal relativity, corrections of black hole entropy, Born’s reciprocal relativity theory and quantum gravity. Can. J. Phys. (2019). https://doi.org/10.1139/cjp-2019-0034
Greenberger, D.M., Horne, M.A., Zeilinger, A.: Going beyond Bells theorem. Kafatos, M. (ed.) Bells Theorem, Quantum Theory and Conceptions of the Universe, pp. 69–72. Springer, Berlin (1989)
Greenberger, D.M., Horne, M.A., Shimony, A., Zeilinger, A.: Bells theorem without inequalities. Am. J. Phys. 58, 1131–1141 (1990)
Dur, W., Vidal, G., Cirac, J.I.: Three qubits can be entangled in two inequivalent ways. Phys. Rev. A 62, 062314 (2000)
Akraki, H., Lieb, E.H.: Entropy inequalities. Commun. Math. Phys. 18, 160–170 (1970)
Lieb, E.H., Urskai, M.B.: Proof of the strong subadditivity of quantum-mechanical entropy. J. Math. Phys. 14, 1938–1941 (1973)
Narnhofer, H., Thirring, W.E.: From relative entropy to entropy. Fizika 17, 257–265 (1985)
Umegaki, H.: Conditional expectation in an operator algebra. IV. Entropy and information. Kodai Math. Semin. Rep. 14, 59–85 (1962)
Vedral, V.: The role of relative entropy in quantum information theory. Rev. Mod. Phys. 74, 197–234 (2002)
Ohya, M., Pertz, D.: Quantum Entropy and Its Use [corrected second printing]. Springer, Berlin (2004)
Wolf, M.M., Verstraete, F., Hasings, M.B., Cirac, J.I.: Area laws in quantum systems: mutual information and correlations. Phys. Rev. Lett. 100, 070502 (2008)
Rényi, A.: On measures of entropy in information. In: Fourth Berkeley Symposium on Mathematical Statistics and Probability, pp. 547–561 (1961)
Zyczkowski, K.: Rényi extrapolation of Shannon entropy. Open Syst. Inf. Dyn. 10, 297–310 (2003)
Müller-Lennert, M., Dupius, F., Szehr, O., Fehr, S., Tomamichel, M.: On quantum Rényi entropies: a new generalization and some properties. J. Math. Phys. 54, 122203 (2013)
Wilde, M.M., Winter, A., Yang, D.: Strong converse for the classical capacity of entanglement-breaking channels. arXiv:1306.1586
Adesso, G., Girolami, D., Serafini, A.: Measuring Gaussian quantum information and correlation using the Rényi entropy of order 2. Phys. Rev. Lett. 109, 190502 (2012)
Beingi, S.: Sandwiched Rényi divergence satisfied data processing inequality. J. Math. Phys. 54, 122202 (2013)
Bekenstein, J.D.: Black holes and the second law. Nuovo Cim. Lett. 4, 737–740 (1972)
Bekenstein, J.D.: Black holes and entropy. Phys. Rev. D 7, 2333–2346 (1973)
Bardeen, J.M., Carter, B., Hawking, S.W.: The four laws of black hole mechanics. Commun. Math. Phys. 31, 161 (1973)
Hawking, S.W.: Particle creation by black holes. Commun. Math. Phys. 43, 199–220 (1975)
Strominger, A., Vafa, C.: Microscopic origin of the Bekenstein–Hawking entropy. Phys. Lett. B 379, 99 (1996). arXiv:hep-th/9601029
Faulkner, T., Guica, M., Harman, T., Myers, R.C., Van Raamsdonk, M.: Gravitation from entanglement and holographic CFTs. J. High Energy Phys. 1403, 051 (2015). arXiv:1312.7856
Swingle, B.: Entanglement renormalization and holography. Phys. Rev. D 86, 065007 (2012). arXiv:0905.1317
Acknowledgements
This research develops the former programs partially supported by IDEI, PN-II-ID-PCE-2011-3-0256, CERN 2012-2014, DAAD-2015 and QGR 2016-2017 and contains certain results for new grant proposals. The UAIC affiliation for S. V. refers to a Project IDEI hosted by that University during 2012–2015, when the bulk of geometric ideas and methods of this and partner works were elaborated (to put a relevant co-/affiliation for further related results was the condition of that grant). Performing rigorous mathematical proofs and respective manuscripts request many years of technical work and further collaborations. S. V. is grateful to D. Singleton, S. Rajpoot and P. Stavrinos for collaboration and supporting his research on geometric methods in physics.
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Vacaru, S.I., Bubuianu, L. Classical and quantum geometric information flows and entanglement of relativistic mechanical systems. Quantum Inf Process 18, 376 (2019). https://doi.org/10.1007/s11128-019-2487-z
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DOI: https://doi.org/10.1007/s11128-019-2487-z
Keywords
- Perelman W-entropy
- Quantum geometric information flows
- Relativistic Lagrange-Hamilton mechanics
- Entanglement entropy of quantum geometric information flows