Superconducting Circuits and Quantum Computation T. P. Orlando
... Superconducting circuits are being used as components for quantum computing and as model systems for non-linear dynamics. Quantum computers are devices that store information on quantum variables and process that information by making those variables interact in a way that preserves quantum coherenc ...
... Superconducting circuits are being used as components for quantum computing and as model systems for non-linear dynamics. Quantum computers are devices that store information on quantum variables and process that information by making those variables interact in a way that preserves quantum coherenc ...
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... In this section we will construct a computational model, based on the lambda calculus, suitable for describing quantum computations. The language used will be an adaptation of the classical lambda calculus, extended with a set of quantum primitives. We will denote it by λi where the subscript stands ...
... In this section we will construct a computational model, based on the lambda calculus, suitable for describing quantum computations. The language used will be an adaptation of the classical lambda calculus, extended with a set of quantum primitives. We will denote it by λi where the subscript stands ...
Quantum Chaos
... the energy levels and eigenstates of the (bound) system? For an open system, in the decay rates, in the Smatrix, in the transport properties? (lectures 1 and 2) What kind of semiclassical approximations can be used? (lecture 2) What is the longtime behaviour of a quantum system? (lecture 3) For a ...
... the energy levels and eigenstates of the (bound) system? For an open system, in the decay rates, in the Smatrix, in the transport properties? (lectures 1 and 2) What kind of semiclassical approximations can be used? (lecture 2) What is the longtime behaviour of a quantum system? (lecture 3) For a ...
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... and cell (in biology) are examples. Compare their current definition with those of 30 years ago and you will notice how much our understanding of what information is and what cells are changed. Other concepts, generalities mostly (such as matter), remain rather stagnant, in defiance of evidence that ...
... and cell (in biology) are examples. Compare their current definition with those of 30 years ago and you will notice how much our understanding of what information is and what cells are changed. Other concepts, generalities mostly (such as matter), remain rather stagnant, in defiance of evidence that ...
Population Inversion in a Single InGaAs Quantum Dot Using
... entangled photon pairs [4], and studies of Bose-Einstein condensation [5]. A two-level quantum system, such as that of an exciton in a single quantum dot, can be driven into a specified state by use of a coherent interaction between the system and a tuned optical field. Previously, the interaction u ...
... entangled photon pairs [4], and studies of Bose-Einstein condensation [5]. A two-level quantum system, such as that of an exciton in a single quantum dot, can be driven into a specified state by use of a coherent interaction between the system and a tuned optical field. Previously, the interaction u ...
Experimental Demonstration of Tripartite Entanglement - ENS-phys
... which is in 1 45 12 arcsin 2 1= 6 relative to the horizontal direction, and then the beams pass through a polarizing beam splitter (PBS) with horizontal and vertical polarizations. The output beam b^02 is split again by a 50=50 beam splitter (BS1 ) consisting of a half-wave plate ( =2) a ...
... which is in 1 45 12 arcsin 2 1= 6 relative to the horizontal direction, and then the beams pass through a polarizing beam splitter (PBS) with horizontal and vertical polarizations. The output beam b^02 is split again by a 50=50 beam splitter (BS1 ) consisting of a half-wave plate ( =2) a ...
BEC and optical lattices
... Centre for Quantum Physics & Technology, Clarendon Laboratory, University of Oxford. ...
... Centre for Quantum Physics & Technology, Clarendon Laboratory, University of Oxford. ...
Model Visualization of Atomic Quantum Numbers Three
... they are required to be able to interpret the physics knowledge appropriately and not vague or ambiguous. Such situation is further compounded again by the use of learning methods that are not appropriate physics. Students will be able to learn more easily about the concepts that are real and can be ...
... they are required to be able to interpret the physics knowledge appropriately and not vague or ambiguous. Such situation is further compounded again by the use of learning methods that are not appropriate physics. Students will be able to learn more easily about the concepts that are real and can be ...
On Quantum vs. Classical Communication Complexity
... All communication models that we have seen can be “augmented” by allowing Alice and Bob (but not the referee) to use shared randomness, or even shared entanglement. Shared randomness matters only in the SMP regime, as O(log n) shared random bits are always sufficient. We do not have, as of today, an ...
... All communication models that we have seen can be “augmented” by allowing Alice and Bob (but not the referee) to use shared randomness, or even shared entanglement. Shared randomness matters only in the SMP regime, as O(log n) shared random bits are always sufficient. We do not have, as of today, an ...
Critical Study of The Structure and Interpretation of
... it be causal or of some other form. And it might constraint on the confirmation of theories that they either embody or are consistent with some account of the correlations ...
... it be causal or of some other form. And it might constraint on the confirmation of theories that they either embody or are consistent with some account of the correlations ...
Document
... Distribution function of the interference amplitude is a quantum operator. The measured value of will fluctuate from shot to shot. How to predict the distribution function of ...
... Distribution function of the interference amplitude is a quantum operator. The measured value of will fluctuate from shot to shot. How to predict the distribution function of ...
A limit relation for quantum entropy, and channel capacity per unit cost
... per unit cost has been studied in classical information theory, see primarily [15], but not in quantum information theory. An indirect approach to capacity per unit cost is possible via the concept of capacity with constrained inputs, which is available for classical-quantum channels [8]. We take a ...
... per unit cost has been studied in classical information theory, see primarily [15], but not in quantum information theory. An indirect approach to capacity per unit cost is possible via the concept of capacity with constrained inputs, which is available for classical-quantum channels [8]. We take a ...
Slide 1
... of the experimenter, to devise an apparatus which could measure some particular observable, but the theory always allows one to imagine that the measurement could be made.” ...
... of the experimenter, to devise an apparatus which could measure some particular observable, but the theory always allows one to imagine that the measurement could be made.” ...
Quantum computing
Quantum computing studies theoretical computation systems (quantum computers) that make direct use of quantum-mechanical phenomena, such as superposition and entanglement, to perform operations on data. Quantum computers are different from digital computers based on transistors. Whereas digital computers require data to be encoded into binary digits (bits), each of which is always in one of two definite states (0 or 1), quantum computation uses quantum bits (qubits), which can be in superpositions of states. A quantum Turing machine is a theoretical model of such a computer, and is also known as the universal quantum computer. Quantum computers share theoretical similarities with non-deterministic and probabilistic computers. The field of quantum computing was initiated by the work of Yuri Manin in 1980, Richard Feynman in 1982, and David Deutsch in 1985. A quantum computer with spins as quantum bits was also formulated for use as a quantum space–time in 1968.As of 2015, the development of actual quantum computers is still in its infancy, but experiments have been carried out in which quantum computational operations were executed on a very small number of quantum bits. Both practical and theoretical research continues, and many national governments and military agencies are funding quantum computing research in an effort to develop quantum computers for civilian, business, trade, and national security purposes, such as cryptanalysis.Large-scale quantum computers will be able to solve certain problems much more quickly than any classical computers that use even the best currently known algorithms, like integer factorization using Shor's algorithm or the simulation of quantum many-body systems. There exist quantum algorithms, such as Simon's algorithm, that run faster than any possible probabilistic classical algorithm.Given sufficient computational resources, however, a classical computer could be made to simulate any quantum algorithm, as quantum computation does not violate the Church–Turing thesis.