FPGA emulation of quantum circuits
... quantum measurement procedures [1]. Nevertheless, some of the quantum effects have been successfully used in practical applications such as data encryption and communication [5]. Further, several quantum-computing systems are being developed [7]. IBM has developed a small-scale quantum machine that ...
... quantum measurement procedures [1]. Nevertheless, some of the quantum effects have been successfully used in practical applications such as data encryption and communication [5]. Further, several quantum-computing systems are being developed [7]. IBM has developed a small-scale quantum machine that ...
Triple to quintuple quantum dots for making multiple qubits
... standard semiconductor fabrication. High-frequency microwave pulses can be used to prepare arbitrary quantum states of the spin qubits, with fidelity in excess of 99%. Our latest experiment on the 31P nucleus has established the record coherence time (35 seconds) for any single qubit in solid state ...
... standard semiconductor fabrication. High-frequency microwave pulses can be used to prepare arbitrary quantum states of the spin qubits, with fidelity in excess of 99%. Our latest experiment on the 31P nucleus has established the record coherence time (35 seconds) for any single qubit in solid state ...
Suppose now that a local hidden variable theory provides a full
... If one is convinced by some EPR-like argument, then one might become a (possibly local) strong property realist. Indeed, even if one is not convinced by EPR, one might still believe that, in spite of the orthodox interpretation, there is no interesting link between strong property realism and the fo ...
... If one is convinced by some EPR-like argument, then one might become a (possibly local) strong property realist. Indeed, even if one is not convinced by EPR, one might still believe that, in spite of the orthodox interpretation, there is no interesting link between strong property realism and the fo ...
Single_QD_spectro
... including narrow peaks and a longitudinal optical (LO) phonon progression with peak spacing comparable to the bulk LO phonon frequency. Differences in phonon coupling are observed between different nanocrystals with an average value that is equal to the phonon coupling measured in ensemble samples. ...
... including narrow peaks and a longitudinal optical (LO) phonon progression with peak spacing comparable to the bulk LO phonon frequency. Differences in phonon coupling are observed between different nanocrystals with an average value that is equal to the phonon coupling measured in ensemble samples. ...
April 16, 1998 - StealthSkater
... Hiley then turns from the physicists to the neuroscientists. Lashly showed that visual perception and recall are nonlocally distributed across the brain. Does this require nonlocal quantum entanglements directly in the brain's configuration space beyond classical nerve and chemical messenger propag ...
... Hiley then turns from the physicists to the neuroscientists. Lashly showed that visual perception and recall are nonlocally distributed across the brain. Does this require nonlocal quantum entanglements directly in the brain's configuration space beyond classical nerve and chemical messenger propag ...
Quantum Physics 2005 Notes-4 The Schrodinger Equation (Chapters 6 + 7)
... The general solution vs the specific case The free particle wave -2 • There are an infinite number of possible solutions to the free space Schrodinger equation. All we have found is the relation between the possible time solutions and the possible space solutions. • We need to give more information ...
... The general solution vs the specific case The free particle wave -2 • There are an infinite number of possible solutions to the free space Schrodinger equation. All we have found is the relation between the possible time solutions and the possible space solutions. • We need to give more information ...
Quantum State Transfer via Noisy Photonic and Phononic Waveguides
... optical [7–9] or microwave regime [10–13], or phonons [14,15]. Thus, imperfections in the quantum channel include photon or phonon loss, and, in particular for microwave photons and phonons, a (thermal) noise background [16]. In this Letter, we propose a QST protocol and a corresponding quantum opti ...
... optical [7–9] or microwave regime [10–13], or phonons [14,15]. Thus, imperfections in the quantum channel include photon or phonon loss, and, in particular for microwave photons and phonons, a (thermal) noise background [16]. In this Letter, we propose a QST protocol and a corresponding quantum opti ...
PDF
... Quantum entanglement and squeezing have been exploited in the context of interferometry, frequency measurements, lithography, and algorithms (see for example Refs. [1]) in order to beat classical limitations. In this paper, we show that entanglement and squeezing can also be used to increase the acc ...
... Quantum entanglement and squeezing have been exploited in the context of interferometry, frequency measurements, lithography, and algorithms (see for example Refs. [1]) in order to beat classical limitations. In this paper, we show that entanglement and squeezing can also be used to increase the acc ...
A Quantum Explanation of Sheldrake`s Morphic
... experience for a repeated stimulus in the mirror of memory (conditioning). If a tree falls in the forest, is there a sound if nobody is there to hear it? Centuries ago, Bishop Berkeley said that there is always God to hear the sound, so the sound is there. But not so with quantum measurement. If tra ...
... experience for a repeated stimulus in the mirror of memory (conditioning). If a tree falls in the forest, is there a sound if nobody is there to hear it? Centuries ago, Bishop Berkeley said that there is always God to hear the sound, so the sound is there. But not so with quantum measurement. If tra ...
Forays into Relativistic Quantum Information Science:
... Even if (s)2 = [(x2- x1)0]2 - [(x2- x1)].[(x2- x1)] < 0 (space-like) “faster-than-light” ...
... Even if (s)2 = [(x2- x1)0]2 - [(x2- x1)].[(x2- x1)] < 0 (space-like) “faster-than-light” ...
lattice approximations
... Quantum states Quantum states (not necessarily pure states!) are functionals on the observable algebra. On each level of lattice approximation states are represented by positive operators with unital trace: ...
... Quantum states Quantum states (not necessarily pure states!) are functionals on the observable algebra. On each level of lattice approximation states are represented by positive operators with unital trace: ...
Working Group "Young DPG" Arbeitsgruppe junge DPG (AGjDPG
... rational mechanics. Society was fascinated by Newtons insights and economists based their theory on classical mechanics with the explicit aim to make economics a rational science as well. But instead of adopting Newtons laws of motion they employed the simplified principle of general maximization. W ...
... rational mechanics. Society was fascinated by Newtons insights and economists based their theory on classical mechanics with the explicit aim to make economics a rational science as well. But instead of adopting Newtons laws of motion they employed the simplified principle of general maximization. W ...
PDF
... simple particle picture must be modified in some radically new way. I want also to stress that I do not believe that, even at the particle level we can regard the process as mechanical. As I will show in the next section, when the quantum potential is examined more closely it does not have the prope ...
... simple particle picture must be modified in some radically new way. I want also to stress that I do not believe that, even at the particle level we can regard the process as mechanical. As I will show in the next section, when the quantum potential is examined more closely it does not have the prope ...
Quantum Communications in the Maritime Environment
... certain conditions, a QKD protocol that guarantees the perfect security of underwater blue-green optical communications appears to be feasible with a key generation rate of about 170 kb/s over 100m in clear oceanic waters (Jerlov type I). Notice that this represents about 600 times more bandwidth th ...
... certain conditions, a QKD protocol that guarantees the perfect security of underwater blue-green optical communications appears to be feasible with a key generation rate of about 170 kb/s over 100m in clear oceanic waters (Jerlov type I). Notice that this represents about 600 times more bandwidth th ...
High-Performance Computing and Quantum Processing - HPC-UA
... sustained by any envisioned super-computer platforms due to fundamental and technological limits. Advanced digital integrated circuits (ICs) are used to implement various distinct computers designs, organizations and architectures. Enormous progress was achieved in semiconductor devices and ICs. The ...
... sustained by any envisioned super-computer platforms due to fundamental and technological limits. Advanced digital integrated circuits (ICs) are used to implement various distinct computers designs, organizations and architectures. Enormous progress was achieved in semiconductor devices and ICs. The ...
Fisher information in quantum statistics
... a measurement M, over all measurements of the state. Thereby they supplied a new proof of Helstrom’s (1967) quantum Cramér-Rao bound: no unbiased estimator of θ, based on any measurement, has variance smaller than I(θ)−1 . Recall that the classical bound states that no unbiased estimator of θ based ...
... a measurement M, over all measurements of the state. Thereby they supplied a new proof of Helstrom’s (1967) quantum Cramér-Rao bound: no unbiased estimator of θ, based on any measurement, has variance smaller than I(θ)−1 . Recall that the classical bound states that no unbiased estimator of θ based ...
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.