Results 31 to 40 of about 108,083 (217)
An atomtronics transistor for quantum gates [PDF]
Physics Letters A, 2014 We present a mechanism for quantum gates where the qubits are encoded in the population distribution of two component ultracold atoms trapped in a species-selective triple-well potential. The gate operation is a specific application of a new design for an atomtronics transistor where inter-species interaction is used to control transport, and can be ...
Miroslav Gajdacz +2 more
openaire +3 more sources
An Arbitrary Two-qubit Computation In 23 Elementary Gates [PDF]
, 2002 Quantum circuits currently constitute a dominant model for quantum computation. Our work addresses the problem of constructing quantum circuits to implement an arbitrary given quantum computation, in the special case of two qubits.
A. Barenco +11 more
core +2 more sources
Randomized benchmarking of quantum gates [PDF]
Physical Review A, 2008 A key requirement for scalable quantum computing is that elementary quantum gates can be implemented with sufficiently low error. One method for determining the error behavior of a gate implementation is to perform process tomography. However, standard process tomography is limited by errors in state preparation, measurement and one-qubit gates.
R. Reichle +9 more
openaire +3 more sources
Designing High-Fidelity Single-Shot Three-Qubit Gates: A Machine Learning Approach [PDF]
, 2016 Three-qubit quantum gates are key ingredients for quantum error correction and quantum information processing. We generate quantum-control procedures to design three types of three-qubit gates, namely Toffoli, Controlled-Not-Not and Fredkin gates.
Ghosh, Joydip +2 more
core +2 more sources
Programmable Quantum Gate Arrays [PDF]
Physical Review Letters, 1997 3 pages, REVTEX. Submitted to Phys.
Isaac L. Chuang, Michael A. Nielsen
openaire +2 more sources
Experimental protection of quantum gates against decoherence and control errors
, 2012 One of the biggest challenges for implementing quantum devices is the requirement to perform accurate quantum gates. The destructive effects of interactions with the environment present some of the most difficult obstacles that must be overcome for ...
Souza, Alexandre M. +2 more
core +1 more source
Towards optimization of quantum circuits [PDF]
, 2006 Any unitary operation in quantum information processing can be implemented via a sequence of simpler steps - quantum gates. However, actual implementation of a quantum gate is always imperfect and takes a finite time.
A. Barenco +3 more
core +2 more sources
On the stability of quantum holonomic gates
New Journal of Physics, 2012 7 ...
Maura Sassetti +6 more
openaire +5 more sources
Input states for quantum gates [PDF]
Physical Review A, 2003 We examine three possible implementations of non-deterministic linear optical cnot gates with a view to an in-principle demonstration in the near future. To this end we consider demonstrating the gates using currently available sources such as spontaneous parametric down conversion and coherent states, and current detectors only able to distinguish ...
Gilchrist, A. +2 more
openaire +4 more sources
Advanced Functional Materials, EarlyView.This work investigates modifying interfacial contacts in realizing giant‐performance semiconductor nanomembrane optoelectronics. Strategies, including surface reaction and buffer layer work‐function modulation, are explored to boost the Schottky barrier. An emerging material of YbOx is utilized for near‐ideal Ohmic contact.
Yibo Zhang +5 more
wiley +1 more source