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Hans Jürgen Briegel
Hans Jürgen Briegel (born 9 August 1962 in Ochsenhausen) is a German theoretical physicist. He is Full Professor at the University of Innsbruck and conducts research in the field of quantum physics and quantum information. Biography Briegel studied physics and philosophy at the LMU München, Ludwig-Maximilian University Munich (1983-1990, terms 1986–1987 at the University of Edinburgh). In 1990 he graduated with a diploma, and in 1994 he completed the PhD program (thesis title: The Jaynes-Cummings Model with Dissipation and its Application for the Dynamics of Microscopic Masers and Lasers). He worked as Research Associate at the Texas A&M University and as Postdoctoral Fellow at Harvard University and the University of Innsbruck. During that time he was also visiting scientist at Harvard-Smithsonian Center for Astrophysics. In 1997 he became Research Associate at the University of Munich and after his habilitation in 2002 (Quantum Information and Computer) he became Associate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ochsenhausen
Ochsenhausen () is a city in the district of Biberach, Baden-Württemberg, Germany. It is located between the city of Biberach and Memmingen. it has a population of 8,916. The mayor of the town is Andreas Denzel. History For many centuries, Ochsenhausen Abbey (''Reichskloster Ochsenhausen''), first mentioned in 1093, was a self -governing prince-abbey within the Holy Roman Empire ruled by a prince-abbot. In 1803, in the course of the German mediatisation, the abbey was secularized and erected into a secular principality that was then granted to Count Franz Georg Karl von Metternich in compensation for the loss of his immediate fiefs on the left bank of the Rhine after the whole area was annexed by revolutionary France. In 1806, the short-lived principality was annexed to the Kingdom of Württemberg, which in 1871 became part of the German Empire. The abbey still dominates the town from a hill. Ochsenhausen is called a "Baroque Kingdom of Heaven" (''"Himmelreich des B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tsinghua University
Tsinghua University (; abbr. THU) is a national public research university in Beijing, China. The university is funded by the Ministry of Education. The university is a member of the C9 League, Double First Class University Plan, Project 985, and Project 211. Since its establishment in 1911, it has produced many notable leaders in science, engineering, politics, business, academia, and culture. As of 2022, Tsinghua University ranked 14th in the world by the 2023 QS World University Rankings and 16th globally by the 2022 ''Times Higher Education World University Rankings''. In 2021, Tsinghua ranked first in the Asia-Pacific region by '' THE Asia University Rankings'' and the ''U.S. News & World Report''. History Early 20th century (1911–1949) Tsinghua University was established in Beijing during a tumultuous period of national upheaval and conflicts with foreign powers which culminated in the Boxer Rebellion, an uprising against foreign influence in China ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1962 Births
Year 196 ( CXCVI) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Dexter and Messalla (or, less frequently, year 949 ''Ab urbe condita''). The denomination 196 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus attempts to assassinate Clodius Albinus but fails, causing Albinus to retaliate militarily. * Emperor Septimius Severus captures and sacks Byzantium; the city is rebuilt and regains its previous prosperity. * In order to assure the support of the Roman legion in Germany on his march to Rome, Clodius Albinus is declared Augustus by his army while crossing Gaul. * Hadrian's wall in Britain is partially destroyed. China * First year of the '' Jian'an era of the Chinese Han Dynasty. * Em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Machine Learning
Quantum machine learning is the integration of quantum algorithms within machine learning programs. The most common use of the term refers to machine learning algorithms for the analysis of classical data executed on a quantum computer, i.e. quantum-enhanced machine learning. While machine learning algorithms are used to compute immense quantities of data, quantum machine learning utilizes qubits and quantum operations or specialized quantum systems to improve computational speed and data storage done by algorithms in a program. This includes hybrid methods that involve both classical and quantum processing, where computationally difficult subroutines are outsourced to a quantum device. These routines can be more complex in nature and executed faster on a quantum computer. Furthermore, quantum algorithms can be used to analyze quantum states instead of classical data. Beyond quantum computing, the term "quantum machine learning" is also associated with classical machine learning m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-way Quantum Computer
The one-way or measurement-based quantum computer (MBQC) is a method of quantum computing that first prepares an entangled ''resource state'', usually a cluster state or graph state, then performs single qubit measurements on it. It is "one-way" because the resource state is destroyed by the measurements. The outcome of each individual measurement is random, but they are related in such a way that the computation always succeeds. In general the choices of basis for later measurements need to depend on the results of earlier measurements, and hence the measurements cannot all be performed at the same time. The hardware implementation of MBQC mainly relies on photonic devices, thanks to the properties of entanglement between the photons. The process of entanglement and measurement can be described with the help of graph tools and group theory, in particular by the elements from the stabilizer group. Definition The purpose of quantum computing focuses on building an informati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Artificial Agent
In artificial intelligence, an intelligent agent (IA) is anything which perceives its environment, takes actions autonomously in order to achieve goals, and may improve its performance with learning or may use knowledge. They may be simple or complex — a thermostat is considered an example of an intelligent agent, as is a human being, as is any system that meets the definition, such as a firm, a state, or a biome. Leading AI textbooks define "artificial intelligence" as the "study and design of intelligent agents", a definition that considers goal-directed behavior to be the essence of intelligence. Goal-directed agents are also described using a term borrowed from economics, " rational agent". An agent has an "objective function" that encapsulates all the IA's goals. Such an agent is designed to create and execute whatever plan will, upon completion, maximize the expected value of the objective function. For example, a reinforcement learning agent has a "reward fun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Free Will
Free will is the capacity of agents to choose between different possible courses of action unimpeded. Free will is closely linked to the concepts of moral responsibility, praise, culpability, sin, and other judgements which apply only to actions that are freely chosen. It is also connected with the concepts of advice, persuasion, deliberation, and prohibition. Traditionally, only actions that are freely willed are seen as deserving credit or blame. Whether free will exists, what it is and the implications of whether it exists or not are some of the longest running debates of philosophy and religion. Some conceive of free will as the right to act outside of external influences or wishes. Some conceive free will to be the capacity to make choices undetermined by past events. Determinism suggests that only one course of events is possible, which is inconsistent with a libertarian model of free will. Ancient Greek philosophy identified this issue, which remains a major fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agency (philosophy)
Agency is the capacity of an actor to act in a given environment. It is independent of the moral dimension, which is called moral agency. In '' sociology'', an agent is an individual engaging with the social structure. Notably, though, the primacy of social structure vs. individual capacity with regard to persons' actions is debated within sociology. This debate concerns, at least partly, the level of reflexivity an agent may possess. Agency may either be classified as unconscious, involuntary behavior, or purposeful, goal directed activity (intentional action). An agent typically has some sort of immediate awareness of their physical activity and the goals that the activity is aimed at realizing. In ‘goal directed action’ an agent implements a kind of direct control or guidance over their own behavior. Human agency Agency is contrasted to objects reacting to natural forces involving only unthinking deterministic processes. In this respect, agency is subtly distinct fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Compass
A compass is a device that shows the cardinal directions used for navigation and geographic orientation. It commonly consists of a magnetized needle or other element, such as a compass card or compass rose, which can pivot to align itself with magnetic north. Other methods may be used, including gyroscopes, magnetometers, and GPS receivers. Compasses often show angles in degrees: north corresponds to 0°, and the angles increase clockwise, so east is 90°, south is 180°, and west is 270°. These numbers allow the compass to show azimuths or bearings which are commonly stated in degrees. If local variation between magnetic north and true north is known, then direction of magnetic north also gives direction of true north. Among the Four Great Inventions, the magnetic compass was first invented as a device for divination as early as the Chinese Han Dynasty (since c. 206 BC),Li Shu-hua, p. 176 and later adopted for navigation by the Song Dynasty Chinese during the 11th centur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Information Processing
Quantum information science is an interdisciplinary field that seeks to understand the analysis, processing, and transmission of information using quantum mechanics principles. It combines the study of Information science with quantum effects in physics. It includes theoretical issues in computational models and more experimental topics in quantum physics, including what can and cannot be done with quantum information. The term quantum information theory is also used, but it fails to encompass experimental research, and can be confused with a subfield of quantum information science that addresses the processing of quantum information. Scientific and engineering studies To understand quantum teleportation, quantum entanglement and the manufacturing of quantum computer hardware requires a thorough understanding of quantum physics and engineering. Since 2010s, there has been remarkable progress in manufacturing quantum computers, with companies like Google and IBM investing heavily ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quantum Entanglement
Quantum entanglement is the phenomenon that occurs when a group of particles are generated, interact, or share spatial proximity in a way such that the quantum state of each particle of the group cannot be described independently of the state of the others, including when the particles are separated by a large distance. The topic of quantum entanglement is at the heart of the disparity between classical and quantum physics: entanglement is a primary feature of quantum mechanics not present in classical mechanics. Measurements of physical properties such as position, momentum, spin, and polarization performed on entangled particles can, in some cases, be found to be perfectly correlated. For example, if a pair of entangled particles is generated such that their total spin is known to be zero, and one particle is found to have clockwise spin on a first axis, then the spin of the other particle, measured on the same axis, is found to be anticlockwise. However, this behavior gives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
One-way Quantum Computer
The one-way or measurement-based quantum computer (MBQC) is a method of quantum computing that first prepares an entangled ''resource state'', usually a cluster state or graph state, then performs single qubit measurements on it. It is "one-way" because the resource state is destroyed by the measurements. The outcome of each individual measurement is random, but they are related in such a way that the computation always succeeds. In general the choices of basis for later measurements need to depend on the results of earlier measurements, and hence the measurements cannot all be performed at the same time. The hardware implementation of MBQC mainly relies on photonic devices, thanks to the properties of entanglement between the photons. The process of entanglement and measurement can be described with the help of graph tools and group theory, in particular by the elements from the stabilizer group. Definition The purpose of quantum computing focuses on building an informati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
