... based on quantum mechanics. It is somewhat natural to wonder about the role of quantum physics in computation, as the size of circuitry placed on computer chips rapidly decreases. Once the size of individual elements reach a certain critical level, their behavior and properties are no longer governe ...
Foundations and Measures of Quantum Non
... completely positive dynamical maps one obtains a quantum Markovian master equation describing the time evolution of the reduced open system states with a generator in Lindblad form [1, 2]. Within a microscopic approach quantum Markovian master equations are usually obtained by means of the Born-Mark ...
... completely positive dynamical maps one obtains a quantum Markovian master equation describing the time evolution of the reduced open system states with a generator in Lindblad form [1, 2]. Within a microscopic approach quantum Markovian master equations are usually obtained by means of the Born-Mark ...
Dynamic holography in a broad-area optically pumped vertical GaAs microcavity
... first-order diffracted signal was detected with a 125-MHz (8-ns) bandwidth amplified silicon photodiode. The signal was averaged on a 500-MHz (2-ns) storage oscilloscope. Deconvolution of the detected signal with the system response yielded approximately a factor of 2. The dark reflectance and the d ...
... first-order diffracted signal was detected with a 125-MHz (8-ns) bandwidth amplified silicon photodiode. The signal was averaged on a 500-MHz (2-ns) storage oscilloscope. Deconvolution of the detected signal with the system response yielded approximately a factor of 2. The dark reflectance and the d ...
pptx file - Northwestern University
... • The Higgs field gives mass to the fundamental particles. • The Universe consists mainly of electrons, protons and dark matter particles. ...
... • The Higgs field gives mass to the fundamental particles. • The Universe consists mainly of electrons, protons and dark matter particles. ...
Quantum one-time programs
... the sender’s input only. If the intention is to hide the map Φ itself—as in the intuitive notion of one-time programs—then we can consider a universal map U that takes as part of the sender’s input a representation of Φ (see [14,15,16]). Sometimes we emphasize the fact that the ideal functionality m ...
... the sender’s input only. If the intention is to hide the map Φ itself—as in the intuitive notion of one-time programs—then we can consider a universal map U that takes as part of the sender’s input a representation of Φ (see [14,15,16]). Sometimes we emphasize the fact that the ideal functionality m ...
Fractionally charged impurity states of a fractional quantum Hall system
... of finite-sized systems [20], including the present one. These non-Laughlin-quasi-particles, if present, could also be bound to an impurity potential. A signature of this would be a bound-state spectral weight that approaches unity. For the largest system sizes studied in the present work, we do fin ...
... of finite-sized systems [20], including the present one. These non-Laughlin-quasi-particles, if present, could also be bound to an impurity potential. A signature of this would be a bound-state spectral weight that approaches unity. For the largest system sizes studied in the present work, we do fin ...
Lecture I: Collective Excitations: From Particles to Fields Free Scalar
... assume periodic boundary conditions (p.b.c.) xN +1 = N a + x1 (and set ẋn ≡ ∂t xn ) Using displacement from equilibrium φn = xn − x̄n L= ...
... assume periodic boundary conditions (p.b.c.) xN +1 = N a + x1 (and set ẋn ≡ ∂t xn ) Using displacement from equilibrium φn = xn − x̄n L= ...
t - H1
... continuing work on several topics in high- energy collision theory, including the analysis of hadron collisions, and the statistical correlation of particles produced in high-energy reactions. Specific topics of his current research include: the quantum mechanical behavior of trapped wave packets; i ...
... continuing work on several topics in high- energy collision theory, including the analysis of hadron collisions, and the statistical correlation of particles produced in high-energy reactions. Specific topics of his current research include: the quantum mechanical behavior of trapped wave packets; i ...
Verification of Concurrent Quantum Protocols by Equivalence
... qubits. In a certain kind of multiple qubit gates, which are called controlled gates, there is one or more control qubits and one or more target qubits. Depending on the value of the control qubit, a unitary gate is applied to the target qubit. Controlled-X (or CNot) and Toffoli [22, p. 29] gates ar ...
... qubits. In a certain kind of multiple qubit gates, which are called controlled gates, there is one or more control qubits and one or more target qubits. Depending on the value of the control qubit, a unitary gate is applied to the target qubit. Controlled-X (or CNot) and Toffoli [22, p. 29] gates ar ...
StMalloQuantumComputing
... Quantum Latin word meaning “some quantity”. In physics used with the same meaning as the word discrete in mathematics, i.e., some quantity or variable that can take only sharply defined values as opposed to a continuously varying quantity. The concepts continuum and continuous are known from geome ...
... Quantum Latin word meaning “some quantity”. In physics used with the same meaning as the word discrete in mathematics, i.e., some quantity or variable that can take only sharply defined values as opposed to a continuously varying quantity. The concepts continuum and continuous are known from geome ...
The Structure of a Quantum World Jill North
... function’s space is fundamental to a quantum world (sections 2 and 3). I end by suggesting that there is a way of reconciling the fundamentality of this high-dimensional space with the three-dimensionality of our experience (section 4). Note that for the purpose of this discussion, I assume realism ...
... function’s space is fundamental to a quantum world (sections 2 and 3). I end by suggesting that there is a way of reconciling the fundamentality of this high-dimensional space with the three-dimensionality of our experience (section 4). Note that for the purpose of this discussion, I assume realism ...
Quantum Computing with Quantum Dots
... a linear array of quantum dots is excited by a laser while sandwiched between two metal electrodes as seen in (Figure 2). The system can easily be scaled up by adding more QDs to the array. Quantum logic gates are performed by exciting the quantum dots with multi-color lasers. In the absence of exci ...
... a linear array of quantum dots is excited by a laser while sandwiched between two metal electrodes as seen in (Figure 2). The system can easily be scaled up by adding more QDs to the array. Quantum logic gates are performed by exciting the quantum dots with multi-color lasers. In the absence of exci ...
The Physical Implementation of Quantum Computation David P. DiVincenzo
... computational power as classical machines; indeed, since Newtonian mechanics emerges as a special limit of quantum mechanics, quantum machines can only have greater computational power than classical ones. The great pioneers and visionaries who pointed the way towards quantum computers, Deutsch [8], ...
... computational power as classical machines; indeed, since Newtonian mechanics emerges as a special limit of quantum mechanics, quantum machines can only have greater computational power than classical ones. The great pioneers and visionaries who pointed the way towards quantum computers, Deutsch [8], ...
Chapter 38 - Quantum scattering
... potential requires special care.) The hope is that in the limit R → ∞ we will recover the scattering system. But some care is required in implementing this. ¯ R) belonging to our box with the enclosed potential V The smooth Weyl term d(E; diverges for a spherical 2-dimensional box of radius R quadra ...
... potential requires special care.) The hope is that in the limit R → ∞ we will recover the scattering system. But some care is required in implementing this. ¯ R) belonging to our box with the enclosed potential V The smooth Weyl term d(E; diverges for a spherical 2-dimensional box of radius R quadra ...
Monday, Nov. 7, 2016
... Future Linear Collider • Has been in the works since late 1990’s • An electron-positron collider on a straight line for precision measurements • 10~15 years from now (In Dec. 2011, Japanese PM announced that they would bid for a LC in Japan and reaffirmed by the new PM in 2013) • Takes 10 years to ...
... Future Linear Collider • Has been in the works since late 1990’s • An electron-positron collider on a straight line for precision measurements • 10~15 years from now (In Dec. 2011, Japanese PM announced that they would bid for a LC in Japan and reaffirmed by the new PM in 2013) • Takes 10 years to ...
Thessa_pres
... Thus, total electric field E(x) at a given x depend only on the total number of particles of both signs at left and at right of x, but not on their precise location; if these numbers are large, E(x) vary slowly with x, with little jumps each time a particle is crossed (discreteness effects) x ...
... Thus, total electric field E(x) at a given x depend only on the total number of particles of both signs at left and at right of x, but not on their precise location; if these numbers are large, E(x) vary slowly with x, with little jumps each time a particle is crossed (discreteness effects) x ...
A REPORT ON QUANTUM COMPUTING
... Keywords – Qubits, superposition, parallelism, coherence, entanglement, quantum gates, decoherence, NMR, quantum dots. 1. INTRODUCTION TO QUANTUM COMPUTERS Gershenfeld says that if making transistors smaller and smaller is continued with the same rate as in the past years, then by the year of 2020, ...
... Keywords – Qubits, superposition, parallelism, coherence, entanglement, quantum gates, decoherence, NMR, quantum dots. 1. INTRODUCTION TO QUANTUM COMPUTERS Gershenfeld says that if making transistors smaller and smaller is continued with the same rate as in the past years, then by the year of 2020, ...