Results 1 to 10 of about 757,026 (325)

Mobile Robot Self-Localization with 2D Push-Broom LIDAR in a 2D Map [PDF]

open access: yes, 2020
This paper proposes mobile robot self-localization based on an onboard 2D push-broom (or tilted-down) LIDAR using a reference 2D map previously obtained with a 2D horizontal LIDAR.
Clotet Bellmunt, Eduard   +3 more
core   +1 more source

Symmetrizing Evolutions

open access: yes, 1999
We introduce quantum procedures for making $\cal G$-invariant the dynamics of an arbitrary quantum system S, where $\cal G$ is a finite group acting on the space state of S. Several applications of this idea are discussed.
Ekert, Lidar, Paolo Zanardi
core   +1 more source

Calculating the Thermal Rate Constant with Exponential Speed-Up on a Quantum Computer

open access: yes, 1998
It is shown how to formulate the ubiquitous quantum chemistry problem of calculating the thermal rate constant on a quantum computer. The resulting exact algorithm scales exponentially faster with the dimensionality of the system than all known ...
Lidar, Daniel A., Wang, Haobin
core   +1 more source

Entangling capacities of noisy two-qubit Hamiltonians

open access: yes, 2004
We show that intrinsic fluctuations in system control parameters impose limits on the ability of two-qubit (exchange) Hamiltonians to generate entanglement starting from mixed initial states. We find three classes for Gaussian and Laplacian fluctuations.
Bandyopadhyay, Somshubhro   +1 more
core   +1 more source

Relative humidity vertical profiling using lidar-based synergistic methods in the framework of the Hygra-CD campaign [PDF]

open access: yes, 2018
Accurate continuous measurements of relative hu- midity (RH) vertical profiles in the lower troposphere have become a significant scientific challenge. In recent years a synergy of various ground-based remote sensing instru- ments have been successfully ...
Baldasano Recio, José María   +4 more
core   +2 more sources

Quantum Computers and Decoherence: Exorcising the Demon from the Machine

open access: yes, 2003
Decoherence is the main obstacle to the realization of quantum computers. Until recently it was thought that quantum error correcting codes are the only complete solution to the decoherence problem.
Lidar, Daniel A., Wu, Lian-Ao
core   +2 more sources

Comment on "Quantum waveguide array generator for performing Fourier transforms: Alternate route to quantum computing"

open access: yes, 2003
A Comment on the paper "Quantum waveguide array generator for performing Fourier transforms: Alternate route to quantum computing" by R. Akis and D.K. Ferry, Appl. Phys. Lett. 79, 2823 (2001). The authors reply in Appl. Phys. Lett.
Lidar, Daniel A.
core   +1 more source

One-spin quantum logic gates from exchange interactions and a global magnetic field

open access: yes, 2004
It has been widely assumed that one-qubit gates in spin-based quantum computers suffer from severe technical difficulties. We show that one-qubit gates can in fact be generated using only modest and presently feasible technological requirements.
D. A. Lidar   +6 more
core   +1 more source

Nested Quantum Annealing Correction

open access: yes, 2015
We present a general error-correcting scheme for quantum annealing that allows for the encoding of a logical qubit into an arbitrarily large number of physical qubits.
Albash, Tameem   +2 more
core   +1 more source

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