Scalable distributed gate-model quantum computers.

A scalable model for a distributed quantum computation is a challenging problem due to the complexity of the problem space provided by the diversity of possible quantum systems, from small-scale quantum devices to large-scale quantum computers. Here, we define a model of scalable distributed gate-model quantum computation in near-term quantum systems of the NISQ (noisy intermediate scale quantum) technology era. We prove that the proposed architecture can maximize an objective function of a computational problem in a distributed manner.

Resource prioritization and balancing for the quantum internet.

The quantum Internet enables networking based on the fundamentals of quantum mechanics. Here, methods and procedures of resource prioritization and resource balancing are defined for the quantum Internet. We define a model for resource consumption optimization in quantum repeaters, and a strongly-entangled network structure for resource balancing.

Routing space exploration for scalable routing in the quantum Internet.

The entangled network structure of the quantum Internet formulates a high complexity routing space that is hard to explore. Scalable routing is a routing method that can determine an optimal routing at particular subnetwork conditions in the quantum Internet to perform a high-performance and low-complexity routing in the entangled structure. Here, we define a method for routing space exploration and scalable routing in the quantum Internet.

Circuit Depth Reduction for Gate-Model Quantum Computers.

Quantum computers utilize the fundamentals of quantum mechanics to solve computational problems more efficiently than traditional computers. Gate-model quantum computers are fundamental to implement near-term quantum computer architectures and quantum devices. Here, a quantum algorithm is defined for the circuit depth reduction of gate-model quantum computers.

Theory of Noise-Scaled Stability Bounds and Entanglement Rate Maximization in the Quantum Internet.

Crucial problems of the quantum Internet are the derivation of stability properties of quantum repeaters and theory of entanglement rate maximization in an entangled network structure. The stability property of a quantum repeater entails that all incoming density matrices can be swapped with a target density matrix. The strong stability of a quantum repeater implies stable entanglement swapping with the boundness of stored density matrices in the quantum memory and the boundness of delays.

Optimizing High-Efficiency Quantum Memory with Quantum Machine Learning for Near-Term Quantum Devices.

Quantum memories are a fundamental of any global-scale quantum Internet, high-performance quantum networking and near-term quantum computers. A main problem of quantum memories is the low retrieval efficiency of the quantum systems from the quantum registers of the quantum memory. Here, we define a novel quantum memory called high-retrieval-efficiency (HRE) quantum memory for near-term quantum devices.

Training Optimization for Gate-Model Quantum Neural Networks.

Gate-based quantum computations represent an essential to realize near-term quantum computer architectures. A gate-model quantum neural network (QNN) is a QNN implemented on a gate-model quantum computer, realized via a set of unitaries with associated gate parameters. Here, we define a training optimization procedure for gate-model QNNs.

Dense Quantum Measurement Theory.

Quantum measurement is a fundamental cornerstone of experimental quantum computations. The main issues in current quantum measurement strategies are the high number of measurement rounds to determine a global optimal measurement output and the low success probability of finding a global optimal measurement output. Each measurement round requires preparing the quantum system and applying quantum operations and measurements with high-precision control in the physical layer.

Examination of life quality, mental conditions and cognitive status of people over the age of 90: Results of a Hungarian local research.

Objectives: The study presents the findings of a quantitative research conducted among people aged over 90, who live in a large town of Hungary, Debrecen. The aim of the research was to examine the lifestyle, attitudes, values, and physical and mental condition of old and long-lived people. We laid a special emphasis on the exploration of the life perspectives, mood and mental youth, and their interconnections.

Opportunistic Entanglement Distribution for the Quantum Internet.

Quantum entanglement is a building block of the entangled quantum networks of the quantum Internet. A fundamental problem of the quantum Internet is entanglement distribution. Since quantum entanglement will be fundamental to any future quantum networking scenarios, the distribution mechanism of quantum entanglement is a critical and emerging issue in quantum networks.

Multilayer Optimization for the Quantum Internet.

We define a multilayer optimization method for the quantum Internet. Multilayer optimization integrates separate procedures for the optimization of the quantum layer and the classical layer of the quantum Internet. The multilayer optimization procedure defines advanced techniques for the optimization of the layers.

Entanglement Availability Differentiation Service for the Quantum Internet.

A fundamental concept of the quantum Internet is quantum entanglement. In a quantum Internet scenario where the legal users of the network have different priority levels or where a differentiation of entanglement availability between the users is a necessity, an entanglement availability service is essential. Here we define the entanglement availability differentiation (EAD) service for the quantum Internet.

Entanglement-Gradient Routing for Quantum Networks.

We define the entanglement-gradient routing scheme for quantum repeater networks. The routing framework fuses the fundamentals of swarm intelligence and quantum Shannon theory. Swarm intelligence provides nature-inspired solutions for problem solving.

Splenic function and red blood cell deformability: The beneficial effects of spleen autotransplantation in animal experiments.

Erythrocyte deformability could be a suitable parameter reflecting hyposplenic-asplenic conditions after splenectomy or spleen autotransplantation. The aim of this study was to analyze the efficacy of spleen autotransplantation using filtrometry and ektacytometry for testing erythrocyte deformability, besides complex structural, functional, hematological, hemostaseological and immunological examinations. Healthy beagle dogs were subjected to the study in the following experimental groups: "Sham"-sham operated control, "SE"-splenectomy, "AU-5" and "AU-10"-autotransplantation with 5 or 10 spleen chips using "Furka's spleen chip" technique after splenectomy.

Spleen autotransplantation. Morphological and functional follow-up after spleen autotransplantation in mice: a research summary.

In 1986, we started the research on spleen surgery aimed at saving the splenic mass after its traumatic injury, with elaboration of special resection and autotransplantation techniques. The researches started on mongrel dogs and were continued on inbred mice and beagle dogs with complex histological, imaging, and laboratory investigations, following-up the function and the regeneration of autotransplanted spleen chips. Performing research on mice provided more immunological methods, such as lymphocyte subsets, immunoglobulin levels, and monitoring the phagocytic functions.

Study on the hemorheological parameters of oldest-old residents in the East-Hungarian city, Debrecen.

The aim of this study was to assess social and health status of residents older than 90 years in an East-Hungarian city. The investigation involved 70 subjects, measuring routine laboratory parameters and plasma viscosity. Mean cholesterol, erythrocyte sedimentation rate (ESR), collagen cross links and plasma viscosity values exceeded the reference range, but mean red blood cell count, hematocrit and hemoglobin were below it.

[The importance of hemorheological examinations in experimental limb ischemia-reperfusion injuries].

Rheological properties of the blood are determined by several factors and if they change it may be diagnostic for many diseases. It is well-known that during ischemia and reperfusion different free-radical liberating pathways are inducted besides the local physical and metabolical changes. These processes may harm red blood cells by increasing their rigidity and impairing their deformability.

[Can the injured spleen be preserved? Results of 20-year experiments].

Researches of different spleen salvaging techniques have begun in 1986 at our department. The early purpose was to develop new spleen preservation surgical techniques, such as spleen autotransplantation and spleen resection. Besides the morphological and radiological examinations we also performed different investigations including hemorheological, hemostaseological and immunological follow-up of the splenic function.

Effect of hemodialysis on the deformability and lipid peroxidation of erythrocytes in chronic renal failure.

Deformability and lipid peroxidation (LP) have been compared in erythrocytes of 45 chronic hemodialysis patients and 30 healthy subjects. The relative cell transit time (RCTT), correlating negatively to deformability, was measured using a St. George filtrometer.

A comparative study of hemorheological parameters in transient ischemic attack and acute ischemic stroke patients: possible predictive value.

A complete neurological and laboratory assessment was made of 31 transient ischemic attack (TIA) and 33 acute ischemic stroke patients. Laboratory parameters were compared with 33 age- and sex-matched controls. Erythrocyte deformability was characterised by determining the relative cell transit time (RCTT) with a St.

Early-onset carotid atherosclerosis is associated with increased intima-media thickness and elevated serum levels of inflammatory markers.

Background And Purpose: Several factors have been held responsible for the development of atherosclerosis. To avoid the masking effect of age, we evaluated correlates of carotid atherosclerosis in patients <55 years of age.

Methods: Plasma lipids, oxidative resistance of low-density lipoprotein, homocysteine, inflammatory markers, plasma viscosity, and red cell deformability were measured in fasting blood samples of 100 subjects: 45 patients with >30% stenosis of the internal carotid artery, 20 patients with carotid occlusion, and 35 control subjects.