author={R. Ionicioiu and G. Amaratunga and F. Udrea},
  journal={International Journal of Modern Physics B},
We describe a solid state implementation of a quantum computer using ballistic single electrons as flying qubits in 1D nanowires. We show how to implement all the steps required for universal quantum computation: preparation of the initial state, measurement of the final state and a universal set of quantum gates. An important advantage of this model is the fact that we do not need ultrafast optoelectronics for gate operations. We use cold programming (or pre-programming), i.e. the gates are… Expand
Entanglement and quantum computing with ballistic electrons
We first present a brief review of the basic requirements, proposals and prototype implementations for quantum computing devices. Then we introduce a specific universal set of quantum gates andExpand
All-electrical quantum computation with mobile spin qubits
We describe and discuss a solid state proposal for quantum computation with mobile spin qubits in one-dimensional systems, based on recent advances in spintronics. Static electric fields are used toExpand
Quantum teleportation of electrons in quantum wires with surface acoustic waves
We propose and numerically simulate a semiconductor device based on coupled quantum wires, suitable for deterministic quantum teleportation of electrons trapped in the minima of surface acousticExpand
Quantum computing with spin qubits in semiconductor structures
Abstract We survey recent work on designing and evaluating quantum computing implementations based on nuclear or bound-electron spins in semiconductor heterostructures at low temperatures and in highExpand
Quantum computing with quantum-Hall edge state interferometry
Electron interferometers based on Hall edge states proved to be robust demonstrators of the coherent quantum dynamics of carriers. Several proposals to expose their capability to build and controlExpand
Entanglement of Excitonic States and Quantum Information Processing in Semiconductors
A review of semiconductor-based schemes for the implementation of quantum information processing devices is presented. After recalling the fundamentals of quantum information/computation theory, weExpand
Design of a Single-Shot Electron detector with sub-electron sensitivity for electron flying qubit operation.
The recent realization of coherent single-electron sources in ballistic conductors let us envision performing time-resolved electronic interferometry experiments analogous to quantum opticsExpand
Spintronic devices as quantum networks
We explore spintronics from a quantum information (QI) perspective. We show that QI specific methods can be an effective tool in designing new devices. Using the formalism of quantum gates acting onExpand
Perspectives on solid-state flying qubits
We review recent efforts toward the numerical modeling of prototypes of one- and two-qubit gates based on coherent electron transport in semiconductor quantum wires. The basics of the proposedExpand
Manipulation, readout and analysis of the decoherence of a superconducting quantum bit
In this thesis work, the quantum behavior of a superconducting circuit implementing a quantum bit or qubit is studied. With the use of resonant microwave pulses the full manipulation of the quantumExpand


Quantum computation with quantum dots
We propose an implementation of a universal set of one- and two-quantum-bit gates for quantum computation using the spin states of coupled single-electron quantum dots. Desired operations areExpand
Quantum computation using electrons trapped by surface acoustic waves
We describe in detail a set of ideas for implementing qubits, quantum gates, and quantum gate networks in a semiconductor heterostructure device. Our proposal is based on an extension of theExpand
Quantum logic gates based on coherent electron transport in quantum wires.
It is shown that the universal set of quantum logic gates can be realized using solid-state quantum bits based on coherent electron transport in quantum wires using a proper design of two quantum wires coupled through a potential barrier. Expand
Simple quantum computer.
  • Chuang, Yamamoto
  • Physics, Medicine
  • Physical review. A, Atomic, molecular, and optical physics
  • 1995
We propose an implementation of a quantum computer to solve Deutsch's problem, which requires exponential time on a classical computer but only linear time with quantum parallelism. By using aExpand
A silicon-based nuclear spin quantum computer
Quantum computers promise to exceed the computational efficiency of ordinary classical machines because quantum algorithms allow the execution of certain tasks in fewer steps. But practicalExpand
Testing Bell’s inequality with ballistic electrons in semiconductors
We propose an experiment to test Bell's inequality violation in condensed-matter physics. We show how to generate, manipulate, and detect entangled states using ballistic electrons in Coulomb-coupledExpand
Quantum measurements performed with a single-electron transistor
Low-capacitance Josephson junction systems as well as coupled quantum dots, in a parameter range where single charges can be controlled, provide physical realizations of quantum bits, discussed inExpand
Josephson-junction qubits with controlled couplings
Quantum computers, if available, could perform certain tasks much more efficiently than classical computers by exploiting different physical principles. A quantum computer would be comprised ofExpand
Environmentally decoupled sds -wave Josephson junctions for quantum computing
Quantum computers have the potential to outperform their classical counterparts in a qualitative manner, as demonstrated by algorithms which exploit the parallelism inherent in the time evolution ofExpand
Quantum gates by coupled asymmetric quantum dots and controlled- NOT -gate operation
A quantum computer based on an asymmetric coupled-dot system has been proposed and shown to operate as a controlled-NOT gate. The basic ideas are the following. (1) The electron is localized in oneExpand