Design and proof of concept for silicon-based quantum dot
... operations. Fault-tolerant techniques have been developed for correcting the errors, but these are only effective for error levels up to 10-4, or one accumulated error per 104 operations16. In the coded qubit scheme, a two-qubit operation (like C-NOT) is composed of a sequence of order 10 exchange c ...
... operations. Fault-tolerant techniques have been developed for correcting the errors, but these are only effective for error levels up to 10-4, or one accumulated error per 104 operations16. In the coded qubit scheme, a two-qubit operation (like C-NOT) is composed of a sequence of order 10 exchange c ...
Section 2 Notes
... Returning now to the problem of the atom, it was realized that if, for a moment, we pictured the electron not as a particle but as a wave, then it was possible to get stable configurations. Imagine trying to establish a wave in a circular path about a nucleus. One possibility might look like the ill ...
... Returning now to the problem of the atom, it was realized that if, for a moment, we pictured the electron not as a particle but as a wave, then it was possible to get stable configurations. Imagine trying to establish a wave in a circular path about a nucleus. One possibility might look like the ill ...
Quantum Imaging: New Methods and Applications Robert W. Boyd
... We formulate a theory for entangled imaging, which ich includes also the case of a large number of photons in the two entangled beams. We show that the results for imaging and for the wave-particle duality features, which have been demonstrated in the microscopic case, persist in the macroscopic dom ...
... We formulate a theory for entangled imaging, which ich includes also the case of a large number of photons in the two entangled beams. We show that the results for imaging and for the wave-particle duality features, which have been demonstrated in the microscopic case, persist in the macroscopic dom ...
pdf-file - Max Planck Institut für Quantenoptik
... and Saudi Arabia, have observed, for the first time, the quantum-mechanical behaviour occurring at the location in a noble gas atom where, shortly before, an electron had been ejected from its orbit. The researchers achieved this result using light pulses which last only slightly longer than 100 att ...
... and Saudi Arabia, have observed, for the first time, the quantum-mechanical behaviour occurring at the location in a noble gas atom where, shortly before, an electron had been ejected from its orbit. The researchers achieved this result using light pulses which last only slightly longer than 100 att ...
IS BOHR`S CHALLENGE STILL RELEVANT?
... trial and error3? It should be emphasised that even current quantum formalism fails to provide a comprehensive answer to this problem. In this formalism, the electronic orbital is a superposition of the initial and final orbitals, with time-dependent coefficients obtained by solving the time-depende ...
... trial and error3? It should be emphasised that even current quantum formalism fails to provide a comprehensive answer to this problem. In this formalism, the electronic orbital is a superposition of the initial and final orbitals, with time-dependent coefficients obtained by solving the time-depende ...
Photoresponse of the GaAs/AlGaAs core
... Stationary and time-depended processes. I. I. Gerasimov In this work we research a photoresponse of the n-type GaAs/AlGaAs core-shell quantum wire array, grown by the vapor-liquid-crystal mechanism on p-type silicon substrate. Photovoltaic and photoconductivity spectra and temporal characteristics o ...
... Stationary and time-depended processes. I. I. Gerasimov In this work we research a photoresponse of the n-type GaAs/AlGaAs core-shell quantum wire array, grown by the vapor-liquid-crystal mechanism on p-type silicon substrate. Photovoltaic and photoconductivity spectra and temporal characteristics o ...
6.2 Growth and structure of semiconductor quantum wells
... RT absorption spectrum of a GaAs/ Al0.28Ga0.72As MQW structure containing 77 GaAs quantum wells of width 10 nm. The spectrum of GaAs at the same temperature is shown for comparison. Detailed analysis reveals that the binding energies of the quantum well excitons are about 10 me, higher than the valu ...
... RT absorption spectrum of a GaAs/ Al0.28Ga0.72As MQW structure containing 77 GaAs quantum wells of width 10 nm. The spectrum of GaAs at the same temperature is shown for comparison. Detailed analysis reveals that the binding energies of the quantum well excitons are about 10 me, higher than the valu ...
Abstracts - Departamento de Matemáticas
... 1d quantum systems. The discussion will be rather comprehensive and detailed for the case of the spin-1/2 Heisenberg chain, but not restricted to this. In the first lecture I will discuss the combinatorial TBA method introduced by Yang and Yang for the single component Bose gas and generalized by Ga ...
... 1d quantum systems. The discussion will be rather comprehensive and detailed for the case of the spin-1/2 Heisenberg chain, but not restricted to this. In the first lecture I will discuss the combinatorial TBA method introduced by Yang and Yang for the single component Bose gas and generalized by Ga ...
Semiconductor qubits for quantum computation
... Church-Turing thesis: There is a „Universal Turing machine“, that can efficiently simulate any other algorithm on any physical device ...
... Church-Turing thesis: There is a „Universal Turing machine“, that can efficiently simulate any other algorithm on any physical device ...
Lecture 8: Period Finding: Simon`s Problem over ZN 1 Problem
... As usual, we have oracle access to f , and we denote the oracle by Of . For this problem, it is most convenient to work with the oracle which behaves as follows: Of (|xi|bi) = |xi|b ⊕ f (x)i, where b is an m-qubit string. We have the promise that f is periodic; namely for some s ∈ ZN \ {0}, f (x) = ...
... As usual, we have oracle access to f , and we denote the oracle by Of . For this problem, it is most convenient to work with the oracle which behaves as follows: Of (|xi|bi) = |xi|b ⊕ f (x)i, where b is an m-qubit string. We have the promise that f is periodic; namely for some s ∈ ZN \ {0}, f (x) = ...
HW 12 - stKFUPM
... A Nobel Laureate (Chemistry & Peace) who used the shell model greatly in his teaching and research is ...
... A Nobel Laureate (Chemistry & Peace) who used the shell model greatly in his teaching and research is ...
Titles and Abstracts
... transgression ideas, and provide explicit examples with physical significance. Eyal Subag (Technion-Israel Institute of Technology, Israel) Title: Contraction of so(n) representations via the Gelfand-Tsetlin bases Abstract: We realize any skew-Hermitian integrable representation of iso(n-1) as a con ...
... transgression ideas, and provide explicit examples with physical significance. Eyal Subag (Technion-Israel Institute of Technology, Israel) Title: Contraction of so(n) representations via the Gelfand-Tsetlin bases Abstract: We realize any skew-Hermitian integrable representation of iso(n-1) as a con ...
Simulation of Quantum Gates on a Novel GPU Architecture
... order 2 × 2. Table 1 presents several well-known transformation. As an example, Pauli transformation X = |0ih1| + |1ih0|, does project component |0i over the |1i one, and vice versa, following that its quantum application to a classic state 0 or 1 is equivalent to the logic operator NOT. The general ...
... order 2 × 2. Table 1 presents several well-known transformation. As an example, Pauli transformation X = |0ih1| + |1ih0|, does project component |0i over the |1i one, and vice versa, following that its quantum application to a classic state 0 or 1 is equivalent to the logic operator NOT. The general ...
Noisy Storage talk
... first satellite launched tum networks need only very few qubits to obtain 2016 from China enuineinquantum advantage over any classical nology. A quantum network that connects many Applied for funding to build the nt nodes is called a quant um int ernet . In the first quantum network in NLto the ...
... first satellite launched tum networks need only very few qubits to obtain 2016 from China enuineinquantum advantage over any classical nology. A quantum network that connects many Applied for funding to build the nt nodes is called a quant um int ernet . In the first quantum network in NLto the ...
the squared modulus of the wave function is the probability density
... Each quantum state of the electron in the Wave Mechanics Model of the hydrogen atom can be described by a “triad” of integers: (n, l, ml ). The energy of the state depends only on the first of these numbers, but otherwise they are all different quantum states. All states for n=1, 2, and 3 are shown ...
... Each quantum state of the electron in the Wave Mechanics Model of the hydrogen atom can be described by a “triad” of integers: (n, l, ml ). The energy of the state depends only on the first of these numbers, but otherwise they are all different quantum states. All states for n=1, 2, and 3 are shown ...
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.