Quantum random walks – new method for designing quantum
... Black box = algorithm that verifies if the ith candidate – Hamiltonian cycle. Quantum algorithm with O(N) steps. ...
... Black box = algorithm that verifies if the ith candidate – Hamiltonian cycle. Quantum algorithm with O(N) steps. ...
Document
... 4. How much work must be done to pull apart the electron and the proton that make up the hydrogen atom if the atom is initially in (a) its ground state and (b) the state with n = 2? ANSWER: (a) 13.6 eV; (b) 3.40 eV 5. What is the probability that in the ground state of the hydrogen atom, the electro ...
... 4. How much work must be done to pull apart the electron and the proton that make up the hydrogen atom if the atom is initially in (a) its ground state and (b) the state with n = 2? ANSWER: (a) 13.6 eV; (b) 3.40 eV 5. What is the probability that in the ground state of the hydrogen atom, the electro ...
Topological Quantum Computation from non-abelian anyons
... A quantum computer is massively parallel: the initial state can be a superposition of every phone number in the Manhattan phone book. ...
... A quantum computer is massively parallel: the initial state can be a superposition of every phone number in the Manhattan phone book. ...
Quantum Computational Complexity in Curved Spacetime
... where |0i and |1i are spin eigenstates, and Ω will depend in a non-trivial manner on the gravitational field and the path followed by the qubit2 . As a consequence, gravitation rotates spin-based qubits in a non-trivial manner. This is a critical fact because spin-based qubits in a quantum computer ...
... where |0i and |1i are spin eigenstates, and Ω will depend in a non-trivial manner on the gravitational field and the path followed by the qubit2 . As a consequence, gravitation rotates spin-based qubits in a non-trivial manner. This is a critical fact because spin-based qubits in a quantum computer ...
Electrical control of a long-lived spin qubit in a
... electron wave function back and forth in the gradient field produced by cobalt micromagnets fabricated near the dot. The electron spin is read out in single-shot mode via spin-to-charge conversion and a QD charge sensor. In earlier work [1], both the fidelity of single-spin rotations and the spin ec ...
... electron wave function back and forth in the gradient field produced by cobalt micromagnets fabricated near the dot. The electron spin is read out in single-shot mode via spin-to-charge conversion and a QD charge sensor. In earlier work [1], both the fidelity of single-spin rotations and the spin ec ...
C. Heitzinger, C. Ringhofer. S. Ahmed, D. Vasileska
... The effective quantum potential is shown in Figure 1. The SOI device used here (Figure 2) has the following specifications: gate length is 10nm, the source/drain length is 15nm each, the thickness of the silicon on insulator (SOI) layer is 7nm, with p-region width of 10nm makes it a fully-depleted d ...
... The effective quantum potential is shown in Figure 1. The SOI device used here (Figure 2) has the following specifications: gate length is 10nm, the source/drain length is 15nm each, the thickness of the silicon on insulator (SOI) layer is 7nm, with p-region width of 10nm makes it a fully-depleted d ...
powerpoint
... your superpower?". Everyone has superpowers, even if their individual beliefs may hinder their development. This talk is for you, whether you disbelieve in superpowers because "science says it impossible" or you already know one of your superpowers. We will discuss the science behind how the mind ca ...
... your superpower?". Everyone has superpowers, even if their individual beliefs may hinder their development. This talk is for you, whether you disbelieve in superpowers because "science says it impossible" or you already know one of your superpowers. We will discuss the science behind how the mind ca ...
Future Directions in Quantum Information
... quantum information processors over long distances. Quantum repeaters for quantum communication channels to distribute entanglement over long distances will soon be a reality. In addition to expanding significantly the capacity for secure communications, such a prototype quantum internet will allow ...
... quantum information processors over long distances. Quantum repeaters for quantum communication channels to distribute entanglement over long distances will soon be a reality. In addition to expanding significantly the capacity for secure communications, such a prototype quantum internet will allow ...
ppt - Jefferson Lab
... except at the edges of phase-space. At present, we have two scales, Q and P┴ (could be soft). Therefore, besides the collinear divergences which can be factorized into TMD parton distributions (not entirely as shown by the ...
... except at the edges of phase-space. At present, we have two scales, Q and P┴ (could be soft). Therefore, besides the collinear divergences which can be factorized into TMD parton distributions (not entirely as shown by the ...
Quantum Discord: A Measure of the Quantumness of Correlations
... interrogate just one part of a composite system and discover its state while leaving the overall density matrix (as perceived by observers that do not have access to the measurement outcome) unaltered. A general separable rS ,A does not allow for such insensitivity to measurements: Information can b ...
... interrogate just one part of a composite system and discover its state while leaving the overall density matrix (as perceived by observers that do not have access to the measurement outcome) unaltered. A general separable rS ,A does not allow for such insensitivity to measurements: Information can b ...
The CNOT Quantum Gate
... Which is directly constructed from the J-coupling term. By using 90-degree rotations on each spin (we have already seen how to construct these) we can construct the Controlled-Phase gate, or Cphase: ...
... Which is directly constructed from the J-coupling term. By using 90-degree rotations on each spin (we have already seen how to construct these) we can construct the Controlled-Phase gate, or Cphase: ...
AGAINST THE COPENHAGEN ORTHODOXY The
... Copenhagen, the universe is not homogeneous but two essentially different physical realities coexist in it, but are not completely insulated one from the other. In the course of the interaction of those two worlds, when the microscopic systems interact with classical objects, the quantum world colla ...
... Copenhagen, the universe is not homogeneous but two essentially different physical realities coexist in it, but are not completely insulated one from the other. In the course of the interaction of those two worlds, when the microscopic systems interact with classical objects, the quantum world colla ...
Linköping University Post Print Quantum contextuality for rational vectors
... that the inconsistency would disappear when we are restricted to projectors on unit vectors with rational components; that noncontextual hidden variables could reproduce the quantum predictions for rational vectors. Here we show that a qutrit state with rational components violates an inequality val ...
... that the inconsistency would disappear when we are restricted to projectors on unit vectors with rational components; that noncontextual hidden variables could reproduce the quantum predictions for rational vectors. Here we show that a qutrit state with rational components violates an inequality val ...
A PRIMER ON THE ANGULAR MOMENTUM AND PARITY
... vector, which is equal to h̄ `(` + 1). It can only take values that are positive integers. It is usually denoted by a letter according to a series s, p, d, f, g, h, i, j, k ..., for ` = 0, 1, 2, 3, 4, 5 ,6 7, 8... respectively, that has its roots in old optical spectroscopic notation. The quantum nu ...
... vector, which is equal to h̄ `(` + 1). It can only take values that are positive integers. It is usually denoted by a letter according to a series s, p, d, f, g, h, i, j, k ..., for ` = 0, 1, 2, 3, 4, 5 ,6 7, 8... respectively, that has its roots in old optical spectroscopic notation. The quantum nu ...
The Institute of Physical Chemistry of the Polish Academy of Sciencies
... known to us from everyday life, an object will always with total probability be in one place, and therefore with zero probability in all others. Not so in the quantum world. When nothing disturbs the state of an elementary particle, atom or small group of them, the probability of the existence of a ...
... known to us from everyday life, an object will always with total probability be in one place, and therefore with zero probability in all others. Not so in the quantum world. When nothing disturbs the state of an elementary particle, atom or small group of them, the probability of the existence of a ...
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.