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Superconducting Circuits and Quantum Computation—T. P. Orlando
Superconducting Circuits and Quantum Computation—T. P. Orlando

... Figure 1a shows a SEM image of the persistent current qubit (inner loop) and the measuring dc SQUID (outer) loop. A schematic of the qubit and the measuring circuit is shown in Figure 1b, where the Josephson junctions are denoted by x's. The sample is fabricated at MIT Lincoln Laboratory in niobium ...
Toward a scalable, silicon-based quantum computing architecture
Toward a scalable, silicon-based quantum computing architecture

... phosphorus atoms lie three classical control wires, one gate and two gates. Precisely timed pulses on these gates provide arbitrary one- and two-qubit quantum gates. Single qubit operators are composed of pulses on the A-gates, modulating the hyperfine interaction between electron and nucleus to pro ...
PDF
PDF

Quantum networks with trapped ions
Quantum networks with trapped ions

Research Article Bimodal Fluorescence and Magnetic Resonance
Research Article Bimodal Fluorescence and Magnetic Resonance

... Nd3+ ) exhibit sharp fluorescent emissions with long lifetime, superior photostability, and high resistance to photobleaching and photoblinking [19, 20]. In addition, other lanthanide ions including Gd3+ possess a large number of unpaired electrons, which could become a paramagnetic relaxation agent ...
Steady State Entanglement in Quantum Dot Networks
Steady State Entanglement in Quantum Dot Networks

... For N qubits there are 2N terms in the superposition if none of the coefficients are zero. Quantum Parallelism, which gives quantum computers an advantages over classical computers, arises from the possibility to prepare the state of qubits in a superposition. This allows us to perform a computation ...
How Many Query Superpositions Are Needed to Learn?
How Many Query Superpositions Are Needed to Learn?

Experiments with Entangled Photons Bell Inequalities, Non-local Games and Bound Entanglement
Experiments with Entangled Photons Bell Inequalities, Non-local Games and Bound Entanglement

Modernizing Quantum Annealing using Local Searches
Modernizing Quantum Annealing using Local Searches

... we cannot determine exactly what the intermediate state of the system is part way though the anneal. This is in direct contrast to SA, where every intermediate state is known, and can be manipulated arbitrarily to build better algorithms. For example, classical gains can be made by running many runs ...
Quantum Computing
Quantum Computing

... these, the quantum circuit model is possibly the simplest to describe. It is also easier to connect with possible physical implementations of quantum computers than the quantum Turing machine model. The disadvantage of this model is that it is not naturally a uniform model. Uniformity is a technical ...
Optical properties of cylindrical nanowires
Optical properties of cylindrical nanowires

The Age of Entanglement  Quantum Computing the (Formerly) Uncomputable
The Age of Entanglement Quantum Computing the (Formerly) Uncomputable

Entanglement and its Role in Shor`s Algorithm
Entanglement and its Role in Shor`s Algorithm

Introduction to Quantum Information Science
Introduction to Quantum Information Science

The Quantum IO Monad - School of Computer Science
The Quantum IO Monad - School of Computer Science

Introduction to Quantum Information
Introduction to Quantum Information

... Box and Tiao 1973; Bretthorst 1988; Lee 1989; Jaynes 2003). This was not the case, however, for most of the 350 years of its history. An entertaining and informative presentation of its troubled history may be found in (Mcgrayne 2011). The picture is completed by identifying, or formulating the quan ...
Reliable quantum computers
Reliable quantum computers

... grasped is that we can fight entanglement with entanglement. Entanglement can be our enemy, since entanglement of our device with the environment can conceal quantum information from us, and so cause errors. But entanglement can also be our friend-we can encode the information that we want to protec ...
Maritime Applications of Quantum Computation
Maritime Applications of Quantum Computation

... Each lattice Qk ∈ Z will be used to store a copy of the image so that, by the end of the recording procedure, Z will be a set of n3 lattices all of which have been prepared identically. We must prepare several identical copies of the same image because, as exposed in subsection II-3, retrieving info ...
Optical Properties of Semiconductor Quantum Dots
Optical Properties of Semiconductor Quantum Dots

... 9.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9.2 Sample fabrication . . . . . . . . . . . . . . . . . . . . . . . . . . 9.3 AB effect: quantum rings vs. quantum dots . . . . . . . . . . . . ...
Towards a Quantum Programming Language
Towards a Quantum Programming Language

... which can be explicitly constructed and manipulated at run-time, even allowing run-time optimizations of operator representations. A quantum programming language of a somewhat different flavor is given by Sanders and Zuliani (2000). Their language qGCL, which is based on an extension of Dijkstra’s g ...
Electronic Correlations in Transport through Coupled Quantum Dots V 82, N 17
Electronic Correlations in Transport through Coupled Quantum Dots V 82, N 17

... problem. The phase shift d is an increasing function of J, which starts at the value given above Eq. (2), and increases until it saturates at d ­ p at a scale J p . From the above estimate of TK the ratio J p yTK0 increases exponentially with tyG. These considerations, and the knowledge of the cross ...
Time-Space Efficient Simulations of Quantum Computations
Time-Space Efficient Simulations of Quantum Computations

Document
Document

... The optical potentials for cold atoms we know, such as optical traps or optical lattices, are based on second-order AC Stark shifts of an electronic atomic level, which is proportional to the light intensity varying in space. For light in the far field, i.e. for optical trapping far away from surfac ...
Precisely Timing Dissipative Quantum Information
Precisely Timing Dissipative Quantum Information

... does not need to have any coherent unitary control over the quantum system but instead merely makes use of dissipative dynamics exhibiting quantum and classical features. Still, it is the very point of our schemes that, at the end of the day, the statistics of the measurement outcomes are exactly as ...
Quantum cryptography
Quantum cryptography

... be a state of two very distant particles, for example on two planets Measurement of one of the particles, with respect to the standard basis, makes the above state to collapse to one of the states |00> or |11>. This means that subsequent measurement of other particle (on another planet) provides the ...
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Quantum dot cellular automaton

Quantum dot cellular automata (sometimes referred to simply as quantum cellular automata, or QCA) are proposed models of quantum computation, which have been devised in analogy to conventional models of cellular automata introduced by von Neumann.
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