Quantum Channel Capacities (PDF Available)
... quantum mechanics with information theory to develop a new picture of communication or to build the theory for some completely new computer-systems, so-called quantum computer which could be faster than the classical pendant in some special cases. The first steps in this direction are already establ ...
... quantum mechanics with information theory to develop a new picture of communication or to build the theory for some completely new computer-systems, so-called quantum computer which could be faster than the classical pendant in some special cases. The first steps in this direction are already establ ...
Symmetry Breaking in Quantum Systems
... We obtain a massive σ eld just as in (4), and also a set of N-1 massless π elds. The massive σ eld describes oscillations of φ in the radial direction. The massless π elds describe oscillations of φ in the tangential directions. i ...
... We obtain a massive σ eld just as in (4), and also a set of N-1 massless π elds. The massive σ eld describes oscillations of φ in the radial direction. The massless π elds describe oscillations of φ in the tangential directions. i ...
Quantum algorithms for shortest paths problems in structured instances
... Notice that the exponent in Theorem 1 is always less than 2.5 and as κ grows, it approaches 2.5. As a consequence of Theorem 1 APSP has a nontrivial quantum algorithm for node-weighted graphs, graphs with small integer weights, graphs embedded in Rd for constant d with Euclidean weights for each edg ...
... Notice that the exponent in Theorem 1 is always less than 2.5 and as κ grows, it approaches 2.5. As a consequence of Theorem 1 APSP has a nontrivial quantum algorithm for node-weighted graphs, graphs with small integer weights, graphs embedded in Rd for constant d with Euclidean weights for each edg ...
Degradable Quantum Channels - Quantum Theory Group at CMU
... • Definition of symmetric channels, and their applications. ...
... • Definition of symmetric channels, and their applications. ...
Large quantum superpositions of a levitated nanodiamond through spin-optomechanical coupling
... objects is one of the most challenging and attractive goals in macroscopic quantum mechanics [1–4]. It provides potential opportunities to experimentally test different wave-function collapse models [2], including gravity-induced state reduction [5], which is a manifestation of the apparent conflict ...
... objects is one of the most challenging and attractive goals in macroscopic quantum mechanics [1–4]. It provides potential opportunities to experimentally test different wave-function collapse models [2], including gravity-induced state reduction [5], which is a manifestation of the apparent conflict ...
Quantum Wires and Quantum Point Contacts
... Effect of parallel magnetic field in 2DEG Parallel field tunes the spin splitting. It also adds to the electrostatic confinement, shifting position of the potential well and energies of subbands to higher values: ‘diamagnetic shift’. In addition it increases the effective mass of charge carriers in ...
... Effect of parallel magnetic field in 2DEG Parallel field tunes the spin splitting. It also adds to the electrostatic confinement, shifting position of the potential well and energies of subbands to higher values: ‘diamagnetic shift’. In addition it increases the effective mass of charge carriers in ...
Connecting processing-capable quantum memories over telecommunication links via quantum frequency conversion
... wavelength band. Third, the quasi-phase matching (QPM) technique, in which periodic domain inversion is used to compensate for the material phase mismatching (k = 0), has been well established for both SFG and DFG over a wide range of wavelengths. Lastly, the background scattering in the lithium n ...
... wavelength band. Third, the quasi-phase matching (QPM) technique, in which periodic domain inversion is used to compensate for the material phase mismatching (k = 0), has been well established for both SFG and DFG over a wide range of wavelengths. Lastly, the background scattering in the lithium n ...
An Introduction to Quantum Fluid of Light
... describes a spatial evolution. On one hand, we have the description of the transversal field profile on a plan z = z0 at different values t. On the other hand, we have at a time t0 the description at different values z of the transversal field profile. For example, it can describe the temporal evolu ...
... describes a spatial evolution. On one hand, we have the description of the transversal field profile on a plan z = z0 at different values t. On the other hand, we have at a time t0 the description at different values z of the transversal field profile. For example, it can describe the temporal evolu ...
Academia Sinica, Taipei, Taiwan, 06/2010, Yip Sungkit
... Regensburg, we have got a problem!!! Do not worry. It is not an easy job but you are in good hands ...
... Regensburg, we have got a problem!!! Do not worry. It is not an easy job but you are in good hands ...
Qubit Quantum Mechanics with Correlated-photon Experiments,
... The experiments have a standard layout as shown in Fig. 1. Since our previous publication,5 we have converged to using gallium nitride 共GaN兲 diode lasers 共wavelength of 405 nm and power of 15–50 mW兲 to produce correlated-photon pairs with a beta-barium-borate nonlinear crystal via type-I spontaneous ...
... The experiments have a standard layout as shown in Fig. 1. Since our previous publication,5 we have converged to using gallium nitride 共GaN兲 diode lasers 共wavelength of 405 nm and power of 15–50 mW兲 to produce correlated-photon pairs with a beta-barium-borate nonlinear crystal via type-I spontaneous ...
Quantum computing: An IBM perspective
... quantum computing. Historically, a liquid-state NMR quantum computer (NMRQC) was the first physical system demonstrating many of the main concepts of quantum computing. In such a system, the nuclear spins are placed in a strong magnetic field, creating the Bup[ and Bdown[ states of the nuclear spin (s ...
... quantum computing. Historically, a liquid-state NMR quantum computer (NMRQC) was the first physical system demonstrating many of the main concepts of quantum computing. In such a system, the nuclear spins are placed in a strong magnetic field, creating the Bup[ and Bdown[ states of the nuclear spin (s ...
Educação - Química Nova
... This work can be applied within a pedagogical approach, improving teaching and learning whereby the students must be active, creative, and participative. The effective model considered in this work is used to describe the whole PT. However, it also represents an approximate model for this. The idea ...
... This work can be applied within a pedagogical approach, improving teaching and learning whereby the students must be active, creative, and participative. The effective model considered in this work is used to describe the whole PT. However, it also represents an approximate model for this. The idea ...
Quantum-like model of unconscious–conscious dynamics
... motivates application of nonclassical probabilistic schemes. And the quantum formalism provides a variety of the well-approved and mathematically elegant probabilistic schemes to handle results of measurements. The theory of quantum apparatuses and instruments is the most general quantum scheme desc ...
... motivates application of nonclassical probabilistic schemes. And the quantum formalism provides a variety of the well-approved and mathematically elegant probabilistic schemes to handle results of measurements. The theory of quantum apparatuses and instruments is the most general quantum scheme desc ...
W. Pauli - Fisica Fundamental
... As long as this problem remains unsolved, the ideas about the complex structure and the anomalous Zeeman effect suggested here can certainly not be considered to be a sufficient physical basis for the explanation of these phenomena, especially as they were in many respects better reproduced in the u ...
... As long as this problem remains unsolved, the ideas about the complex structure and the anomalous Zeeman effect suggested here can certainly not be considered to be a sufficient physical basis for the explanation of these phenomena, especially as they were in many respects better reproduced in the u ...
Isolation of the Conceptual Ingredients of Quantum Theory by Toy
... Special Relativity, was built around the fundamental idea of causality: he decreed that the constant speed of light provides a limit on the speed at which observers can communicate, and a finite lower bound on the time taken to transmit a causal influence. In short Einstein had stated that cause and ...
... Special Relativity, was built around the fundamental idea of causality: he decreed that the constant speed of light provides a limit on the speed at which observers can communicate, and a finite lower bound on the time taken to transmit a causal influence. In short Einstein had stated that cause and ...