Quantum memory for superconducting qubits 兲
... experimental system by focusing on gate times short compared with the relevant energy and phase relaxation times. When the JJ is weakly coupled to the resonator, with g / ប0 below a few percent, the RWA memory protocol of Sec. III works well, and qubits are stored and retrieved with high fidelity. ...
... experimental system by focusing on gate times short compared with the relevant energy and phase relaxation times. When the JJ is weakly coupled to the resonator, with g / ប0 below a few percent, the RWA memory protocol of Sec. III works well, and qubits are stored and retrieved with high fidelity. ...
Wigner Jenő és a „kvantum disszidensek”
... (1561 1627), very fine poems, by the way, especially the early ones. Yet also his later poems (to which the term more particularly refers) are well sounding and they all make sense. But he uses all his acuity and skill on making it as difficult as possible to the reader to unravel the sense, so that ...
... (1561 1627), very fine poems, by the way, especially the early ones. Yet also his later poems (to which the term more particularly refers) are well sounding and they all make sense. But he uses all his acuity and skill on making it as difficult as possible to the reader to unravel the sense, so that ...
INTRODUCTION TO QUANTUM SUPERCONDUCTING CIRCUITS
... + Kirchhoff equations for circuits are equivalent to Maxwell's equation Define flux and charge for one element Flux and charge are conjugate variables How do we understand it? 2 choices flux is position, charge is position Connections between elements Example of harmonic oscillator Always in the cor ...
... + Kirchhoff equations for circuits are equivalent to Maxwell's equation Define flux and charge for one element Flux and charge are conjugate variables How do we understand it? 2 choices flux is position, charge is position Connections between elements Example of harmonic oscillator Always in the cor ...
Black hole fireworks: quantum-gravity effects outside the horizon
... (outside the quantum region), but it is not a portion of the Kruskal solution. Rather, it is a portion of a double cover of the Kruskal solution, in the sense that there are distinct regions isomorphic to the same Kruskal region. This is explained in detail below, and is the technical core of the pa ...
... (outside the quantum region), but it is not a portion of the Kruskal solution. Rather, it is a portion of a double cover of the Kruskal solution, in the sense that there are distinct regions isomorphic to the same Kruskal region. This is explained in detail below, and is the technical core of the pa ...
noise - Michael Nielsen
... It should have a clear meaning in an experimental context, and be relatively easy to measure in a stable fashion. It should have “nice” mathematical properties that facilitate understanding processes like quantum error-correction. Candidates abound, but nobody has clearly obtained a synthesis of all ...
... It should have a clear meaning in an experimental context, and be relatively easy to measure in a stable fashion. It should have “nice” mathematical properties that facilitate understanding processes like quantum error-correction. Candidates abound, but nobody has clearly obtained a synthesis of all ...
What quantum computers may tell us about quantum mechanics
... for simultaneously doubling all input numbers (Modulo 7), by shifting all qubits one position to the left and wrapping around the leftmost bit. The outputs are also in superposition, and a final measurement projects one answer at random. (b) Quantum algorithm involving wavelike interference of weigh ...
... for simultaneously doubling all input numbers (Modulo 7), by shifting all qubits one position to the left and wrapping around the leftmost bit. The outputs are also in superposition, and a final measurement projects one answer at random. (b) Quantum algorithm involving wavelike interference of weigh ...
A Complete Characterization of Unitary Quantum
... Initialize a state consisting of Merlin’s witness and blank ancilla Alternatingly measure ...
... Initialize a state consisting of Merlin’s witness and blank ancilla Alternatingly measure ...
Quantum Potential - Fondation Louis de Broglie
... usual Bohmian interpretation, the particle is under the influence of R and S, in addition to the external potential V (x). In this interpretation, one assumes the fundamental Schrödinger equation, but tries to extract another meaning from the wave function. The Bohmian mechanics, as we know it, is ...
... usual Bohmian interpretation, the particle is under the influence of R and S, in addition to the external potential V (x). In this interpretation, one assumes the fundamental Schrödinger equation, but tries to extract another meaning from the wave function. The Bohmian mechanics, as we know it, is ...
Quantum Computing with Quantum Dots
... how a quantum computing (QC) system can be realized using localized excitons in QDs as the elementary quantum bit. According to DiVincenzo, the five requirements that must be satisfied in order to obtain a reliable QC system are: (1) a scalable system, (2) the ability to initialize qubits (3) relat ...
... how a quantum computing (QC) system can be realized using localized excitons in QDs as the elementary quantum bit. According to DiVincenzo, the five requirements that must be satisfied in order to obtain a reliable QC system are: (1) a scalable system, (2) the ability to initialize qubits (3) relat ...
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.