Simulations of Quantum Logic Operations in Quantum Computer with Large Number of Qubits

Abstract

We report the first simulations of the dynamics of quantum logic operations with a large number of qubits (up to 1000). A nuclear spin chain in which selective excitations of spins is provided by the gradient of the external magnetic field is considered. The spins interact with their nearest neighbors. We simulate the quantum control-not (CN) gate implementation for remote qubits which provides the long-distance entanglement. Our approach can be applied to any implementation of quantum logic gates involving a large number of qubits.

13 pages, 15 figures

References in corpus (2)

• Quantum Manipulations of Small Josephson Junctions
• Adiabatic quantum computation with Cooper pairs

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• Numerical simulation of a Controlled-Controlled-Not (CCN) quantum gate in a chain of three interacting nuclear spins system
• Creation of entanglement in a scalable spin quantum computer with long-range dipole-dipole interaction between qubits
• Quantum computation in a Ising spin chain taking into account second neighbor couplings
• Simulation of static and random errors on Grover's search algorithm implemented in a Ising nuclear spin chain quantum computer with few qubits
• Magnetic Resonance Force Microscopy Measurement of Entangled Spin States