The Ghost in the Quantum Turing Machine
... had gone further than anyone before him to reveal the mechanistic nature of reality. Through his discovery of computational universality, as well as the Turing Test criterion for intelligence, Turing finally unmasked the pretensions of anyone who claimed there was anything more to mind, brain, or th ...
... had gone further than anyone before him to reveal the mechanistic nature of reality. Through his discovery of computational universality, as well as the Turing Test criterion for intelligence, Turing finally unmasked the pretensions of anyone who claimed there was anything more to mind, brain, or th ...
Quantum Picture of the Josephson Junction
... Unlike the Harmonic Oscillator Potential, the energy spaces of the wash board potential are not equal. This is a significant quality of this system that makes it a candidate for qubit, as discussed later. The potential in my calculation and the eigenfunctions for the 4 lowest states are shown in Fig ...
... Unlike the Harmonic Oscillator Potential, the energy spaces of the wash board potential are not equal. This is a significant quality of this system that makes it a candidate for qubit, as discussed later. The potential in my calculation and the eigenfunctions for the 4 lowest states are shown in Fig ...
Evade the Heisenberg Uncertainty Principle
... quantum state with higher precision and accuracy in a much shorter time compared to the approach with weak measurements—a tremendous advance,", explains Tobias Denkmayr the first author of the paper. These results have now been published in the journal Physical Review Letters. An experimental test o ...
... quantum state with higher precision and accuracy in a much shorter time compared to the approach with weak measurements—a tremendous advance,", explains Tobias Denkmayr the first author of the paper. These results have now been published in the journal Physical Review Letters. An experimental test o ...
PowerPoint プレゼンテーション
... PLE measurements on a 1D ground states were achieved on an isolated single quantum wire. We observed a signature of 1D DOS represented by an absorption peak at the band edge, which indicates a high uniformity of our sample. The tunable density range covers ...
... PLE measurements on a 1D ground states were achieved on an isolated single quantum wire. We observed a signature of 1D DOS represented by an absorption peak at the band edge, which indicates a high uniformity of our sample. The tunable density range covers ...
Complexity Limitations on Quantum Computation 1 Introduction
... We have seen a surge in interest in quantum computation over the past few years. This interest comes from new and good theoretical models for quantum Turing machines [BV97] and surprising algorithms for factoring [Sho97] and searching [Gro96]. Exactly how much can we accomplish with quantum computer ...
... We have seen a surge in interest in quantum computation over the past few years. This interest comes from new and good theoretical models for quantum Turing machines [BV97] and surprising algorithms for factoring [Sho97] and searching [Gro96]. Exactly how much can we accomplish with quantum computer ...
A REPORT ON QUANTUM COMPUTING
... distinct states, a 0 or a 1. In a quantum computer the rules are changed. Not only can a 'quantum bit', usually referred to as a 'qubit', exist in the classical 0 and 1 states, it can also be in a coherent superposition of both. When a qubit is in this state it can be thought of as existing in two u ...
... distinct states, a 0 or a 1. In a quantum computer the rules are changed. Not only can a 'quantum bit', usually referred to as a 'qubit', exist in the classical 0 and 1 states, it can also be in a coherent superposition of both. When a qubit is in this state it can be thought of as existing in two u ...
Quantum Weakest Preconditions - McGill School Of Computer Science
... is that ρ and ρ0 are physically indistinguishable, and thus one cannot have a physical observable that tells these “two” ensembles apart. When developing a theory of predicates and predicate transformers one must therefore restrict to mathematical objects that are compatible with the linear structur ...
... is that ρ and ρ0 are physically indistinguishable, and thus one cannot have a physical observable that tells these “two” ensembles apart. When developing a theory of predicates and predicate transformers one must therefore restrict to mathematical objects that are compatible with the linear structur ...
Operation of a quantum bit circuit based on the Cooper pair
... which is different for both qubit states. This measurement is performed by monitoring the switching of an extra large Josephson junction inserted in the loop when a bias current pulse is applied to it. We show that this readout strategy approaches single-shot resolution, and we demonstrate that all ...
... which is different for both qubit states. This measurement is performed by monitoring the switching of an extra large Josephson junction inserted in the loop when a bias current pulse is applied to it. We show that this readout strategy approaches single-shot resolution, and we demonstrate that all ...
Foundations and Measures of Quantum Non
... the decay of coherences, the relaxation to an equilibrium or non-equilibrium stationary state, and the transport of excitations in complex structures are of central importance in many applications of quantum mechanics. The theoretical description, analysis and control of non-Markovian quantum proces ...
... the decay of coherences, the relaxation to an equilibrium or non-equilibrium stationary state, and the transport of excitations in complex structures are of central importance in many applications of quantum mechanics. The theoretical description, analysis and control of non-Markovian quantum proces ...
Superconducting phase qubit coupled to a nanomechanical resonator:
... Ⰶ 0 / Q and g Ⰶ ⌬⑀. However, the resonant Rabi frequency, which is proportional to g, is then much smaller than the qubit frequency ⌬⑀ / ប. Therefore, restricting g to be in the simpler weak-coupling regime leads to quantum information processing that is slower than necessary, allowing fewer operat ...
... Ⰶ 0 / Q and g Ⰶ ⌬⑀. However, the resonant Rabi frequency, which is proportional to g, is then much smaller than the qubit frequency ⌬⑀ / ប. Therefore, restricting g to be in the simpler weak-coupling regime leads to quantum information processing that is slower than necessary, allowing fewer operat ...
Quantum coding with finite resources
... it is natural to ask how well quantum coding schemes perform when we restrict the size of the quantum devices used for encoding the channel inputs and decoding its outputs. This is equivalent to considering communication with only a fixed number of channel uses. In this work, following the footsteps ...
... it is natural to ask how well quantum coding schemes perform when we restrict the size of the quantum devices used for encoding the channel inputs and decoding its outputs. This is equivalent to considering communication with only a fixed number of channel uses. In this work, following the footsteps ...
Coupling Electrons, Phonons, and Photons for Nonequilibrium
... the electron and hole systems, which relax by transferring much of it to the lattice; thereby, both electronic and lattice (phonon) systems are far from equilibrium. With high-frequency excitation, both interband and intraband electronic transitions potentially occur, and details of the interaction ...
... the electron and hole systems, which relax by transferring much of it to the lattice; thereby, both electronic and lattice (phonon) systems are far from equilibrium. With high-frequency excitation, both interband and intraband electronic transitions potentially occur, and details of the interaction ...
