Theoretical study of a new method for the quantum computer implementation based on self-organizing structures: the essence of new proposals and argumentation
Махвиладзе Тариэль Михайлович, Сарычев Михаил Евгеньевич
General key problems in relation to the application of self-organizing structures theory to the analysis of current cooperative phenomena are discussed. Particularly, we present the new results of the analysis of burning problem to form a qubit network. Recently [Proc. of the Inst. of Physics and Technol. of Russian Acad. of Sci. (Trudy FTIAN), vol. 25 (accepted for publication on Jan. 15, 2015)] we have proposed a new method for quantum computer implementation based on self-organizing structures. Here we consider in detail the essence of new proposals and theoretical argumentation. We have shown that some self-organizing structures, both dissipative ones and thermodynamically equilibrium structures with off-diagonal long-range order, are promising to form a qubit network. This is confirmed by our results of the investigations relative to the following items: an open resonator with periodic boundaries, conditions to create specific distribution of the modes and the effect of the field crystallization, the use of this effect to create an proficient and coherentized system of neutral atoms traps and to achieve their precise localization; the equilibrium systems which can go, at temperatures below critical ones, into the special state with off-diagonal long-range order (i.e. to the state with macroscopic quantum coherence), phase transition (photons condensation) in the two-level atoms interacting with radiation mode in the resonator, superradiant phase transition, the order-disorder type ferroelectrics in the cavity electromagnetic field, the advantage of the systems capable to self-organization, including the suppression of the temperature influence as the decoherence factor acting on the work states of the qubits (atoms, ferroelectric molecules), and also the coherent character of the direct dipole-dipole interaction between qubits (in the case of ferroelectrics), and other items.
General key problems in relation to the application of self-organizing structures theory to the analysis of current cooperative phenomena are discussed. Particularly, we present the new results of the analysis of burning problem to form a qubit network. Recently [Proc. of the Inst. of Physics and Technol. of Russian Acad. of Sci. (Trudy FTIAN), vol. 25 (accepted for publication on Jan. 15, 2015)] we have proposed a new method for quantum computer implementation based on self-organizing structures. Here we consider in detail the essence of new proposals and theoretical argumentation. We have shown that some self-organizing structures, both dissipative ones and thermodynamically equilibrium structures with off-diagonal long-range order, are promising to form a qubit network. This is confirmed by our results of the investigations relative to the following items: an open resonator with periodic boundaries, conditions to create specific distribution of the modes and the effect of the field crystallization, the use of this effect to create an proficient and coherentized system of neutral atoms traps and to achieve their precise localization; the equilibrium systems which can go, at temperatures below critical ones, into the special state with off-diagonal long-range order (i.e. to the state with macroscopic quantum coherence), phase transition (photons condensation) in the two-level atoms interacting with radiation mode in the resonator, superradiant phase transition, the order-disorder type ferroelectrics in the cavity electromagnetic field, the advantage of the systems capable to self-organization, including the suppression of the temperature influence as the decoherence factor acting on the work states of the qubits (atoms, ferroelectric molecules), and also the coherent character of the direct dipole-dipole interaction between qubits (in the case of ferroelectrics), and other items.
This paper introduces a novel quantum algorithm based on self-organizing structures, leveraging the unique properties of quantum entanglement and superposition. The core principle centers around constructing a quantum computing system through the strategic arrangement of these properties, aiming to enhance computational efficiency and precision. We detail the design of this algorithm, exploring its potential to surpass current limitations in quantum computation. This work presents a fundamental investigation into the application of self-organizing structures to quantum algorithms, outlining the design methodology and preliminary results demonstrating enhanced performance characteristics.
This thesis discusses scaling and critical behavior of two different models. One model describes Ising dipoles, originates in condensed matter physics and depicts equilibrium critical phenomena. The other model, taken from the earth sciences, describes faulting instabilities and the resulting earthqnakes, and involves self-organized criticality — a nonequilibrium phenomenon. Both models are characterized by long range interactions, with a resulting sensitivity to boundary conditions. The ordering properties of Ising dipoles on lattices are studied in a mean field theory and by Monte Carlo simulations. The mean field theory is manifestly shape independent in zero external field. In the case of dipoles on a diluted lattice the mean field theory predicts a critical concentration above which the low temperature phase is ferroelectric (or anti-ferroelectric depending on the lattice structure). Extensive Monte Carlo simulation results are in agreement with those of mean field theory. We propose a finite size scaling form that includes logarithmic corrections for systems at the critical dimensionality. In the case of dipoles on a body centered tetragonal lattice we found that the finite scaling form significantly improved the data collapse over the scaling form with mean field exponents. With lattice parameters appropriate to the Ising ferromagnetic compound LiHoF4,we obtain a ferromagnetic transition temperature Tc= 1.51K in excellent agreement with experiment. This indicates that the material LiHoF4 is dominated by the dipole-dipole interaction; since in the simulations we only include dipole-dipole interactions. For dipoles on the simple cubic lattice, the ordered state is made up of anti-ferromagnetic rows. The critical exponents obtained by finite size scaling are ß~1/7,y ~ 8/7 and a ~4/7. These results are in good agreement with those of high temperature series expansions. A model of self—organized ruptures in an elastic medium is developed; and applied to earthquakes. In the model the local ruptures are represented by double couples to be consistent with elastic theory. The explicit form of this double couple source is derived. The system is driven by slowly increasing the shear stress. The model evolves towards a self-organized critical state in which the earthquake distribution follows the Gutenberg Richter law with an exponent in agreement with observational data. By modeling the local static fatigue for the rocks, we also obtained Omori’s law for the rate of aftershocks. The effects of annealing are investigated.
Quantum information fields are fundamentally different from classical information fields, exhibiting unique properties that enable novel computational paradigms. This paper explores the concept of self-organizing information fields – a theoretical framework that posits the existence of patterns and structures within these fields that drive their dynamic behavior. We investigate the potential of leveraging these self-organizing characteristics to design a quantum algorithm that surpasses current limitations in quantum computation and data transmission. The core mechanism centers around identifying and exploiting specific patterns within these fields to generate highly efficient and rapid data transfer. The investigation begins with a conceptual analysis of self-organization, progresses through a proposed quantum algorithm architecture, and ultimately details the anticipated benefits of this approach. This work seeks to contribute to the advancement of quantum information processing by demonstrating a viable path towards more powerful and versatile quantum technologies.
Atoms can be trapped and laser cooled by a two-color evanescent field surrounding an optical nanofiber [1]. They can simultaneously be interrogated with light sent through the nanofiber [1,2]. This situation can be described in terms of a 1-dimensional electrodynamic theory, where dissipation may occur via the fiber itself, or in the rest of the modes of the electromagnetic field [3]. In such a theory, the light emitted by one atom may be absorbed by any other atom, thus giving rise to a long-range dipole-dipole interaction and the corresponding inter-atomic force. Thus, atoms may move in the self-created field. Additionally, light emitted by the atoms may dissipate energy, and thus drive the atoms into an equilibrium situation. This phenomenon is similar to the crystallization occurring in ion-trap experiments, or neutral atoms in optical lattices or cavities. The main difference, however, is that here there is no external structure which determines the equilibrium position, and that the forces between the atoms are dynamical in nature. In this contribution we will explain this phenomenon theoretically, and analyze the possibility of observing it with current experiments.
The object of this PhD Thesis is light and matter quantum interaction including studies on cavity and circuit quantum electrodynamics (CQED and cQED), quantum information theory and entanglement dynamics in open systems. In recent years both theoretical and experimental efforts have been devoted to study problems regarding the transfer of quantum correlations, quantum memories, entanglement protection against decoherence and new regimes accessible in cQED. One of the fundamental model underlying these topics is the well known Jaynes-Cummings (JC) one for light-matter interaction, introduced in quantum optics already in 1963. This paradigmatic model describes the coherent exchange of a single excitation between a qubit (a two-level system) and a mode of a quantized harmonic oscillator. The JC model describes a lot of purely quantum effects such as Rabi oscillations and generation of entangled quantum states, which were confirmed by several sophisticated experiments in CQED. This model has been then applied in many other frameworks. Analytical results can be derived only under the so-called rotating wave approximation (RWA), which allows to neglect the energy contributions coming from the counter-rotating terms, which describe the simultaneous excitation (or de-excitation) of the qubit and the field mode. In this Thesis a first interesting investigation, based on the JC model, is related to the realization of quantum memories. The main aspect is the transfer of generic quantum entangled states of a propagating radiation to some qubits, such as two-level atoms placed in separated optical cavities. Generalizing previous results for bipartite entangled systems, I investigated the more complex case of tripartite systems, where the very quantification of entanglement is still an open problem. This issue is broadened to open systems in contact with a common environment which induces decoherence effects unavoidable in realistic implementations. The main result of this analysis is that it is possible to map in an optimal way a quantum state from radiation to qubits in the unitary dynamics, and even in the presence of a dissipative environment a significative amount of entanglement can be transferred. This study has been carried on with either theoretical calculations or numerical simulations performed adopting the powerful Monte Carlo wave function method. A second important problem for quantum memories faced in this PhD Thesis, regards the protection of qubits entanglement for long enough times in order to implement quantum information tasks. A possible way to obtain this goal is to add an external coherent field driving two or more two-level atoms interacting with a common mode of a cavity electromagnetic field. In fact it is possible to demonstrate that, under certain conditions, an effective Hamiltonian of the whole system involves, together with the familiar JC terms, also the counter-rotating ones. The main feature that comes out from this analysis is the possibility to freeze, during system dynamics, peculiar quantum entangled states of the atomic qubits in so called decoherence-free subspaces. This important property allows to store the entanglement in matter qubits, isolating the quantum state from environment induced decoherence. Though the system includes dissipation, analytical results have been obtained for multipartite entanglement and decoherence by solving the master equation through a projection on a suitable basis and using the method of characteristics. In particular it is possible to monitor the rate of decoherence via measurements of joint atomic probabilities, shading light on the fascinating border between the quantum and the classical world. A last topic investigated in this Thesis concerns the recently developed and quite promising implementation of the JC model well outside CQED, that is cQED. Here superconductive circuits, which play the role of artificial atoms, interact on-chip with transmission line resonators, instead of the usual electromagnetic cavities. These systems have the advantage of being quite easily engineered exploiting the most advanced available technologies. Moreover they allow a great flexibility in handling the relevant parameters, since the inter-system coupling is here of capacitive or inductive nature, instead of the usual electric dipole interaction in CQED. In this way a strong and ultrastrong coupling regime have become available, giving a direct access to the physics beyond the JC model and its possible applications. I first performed a detailed characterization of system dynamics in order to test the main approximations usually introduced to describe superconductive circuits as qubits. Then I described, both analytically and numerically, the dissipative dynamics of a superconductive qubit coupled to a resonator mode in the deep strong regime.
This paper explores the potential of utilizing self-organizing network structures within a quantum computing framework to enhance the performance and stability of large-scale quantum computation. Traditional quantum computing relies on static qubit configurations, while this design introduces a dynamic network to optimize resource allocation, ultimately aiming for increased efficiency. The core mechanism focuses on leveraging the inherent properties of these networks to intelligently manage quantum resources, mitigating the inherent challenges of scaling quantum systems. This work presents a theoretical framework and preliminary design considerations for such a system, highlighting the benefits of this approach in achieving robust and scalable quantum computation.