Results 21 to 30 of about 251,773 (344)

Multiparticle entanglement with quantum logic networks: Application to cold trapped ions [PDF]

open access: yes, 2001
We show how to construct a multi-qubit control gate on a quantum register of an arbitrary size N. This gate performs a single-qubit operation on a specific qubit conditioned by the state of other N-1 qubits.
A. Barenco   +26 more
core   +2 more sources

Topological Qubits as Carriers of Quantum Information in Optics

open access: yesApplied Sciences, 2019
Winding number is a topologically significant quantity that has found valuable applications in various areas of mathematical physics. Here, topological qubits are shown capable of formation from winding number superpositions and so of being used in the ...
Gregg Jaeger   +2 more
doaj   +1 more source

Radial oscillations of an electron in a Coulomb attracting field

open access: yesOpen Physics, 2022
The radial motion of an electron in a Coulomb attracting field based on a new theory of the interaction of a particle with an electromagnetic field is studied.
Karapetyan Grigori G.
doaj   +1 more source

SoK: Benchmarking the Performance of a Quantum Computer

open access: yesEntropy, 2022
The quantum computer has been claimed to show more quantum advantage than the classical computer in solving some specific problems. Many companies and research institutes try to develop quantum computers with different physical implementations. Currently,
Junchao Wang, Guoping Guo, Zheng Shan
doaj   +1 more source

Quantum Logic Locking for Security

open access: yesJ, 2023
Having access to a unique quantum circuit that one wants to protect against use by others is a very likely scenario in industrial computing. However, currently, users rely on classical computer security schemes, which have known shortcomings.
Rasit Onur Topaloglu
doaj   +1 more source

Heart Failure Detection Using Instance Quantum Circuit Approach and Traditional Predictive Analysis

open access: yesMathematics, 2023
The earlier prediction of heart diseases and appropriate treatment are important for preventing cardiac failure complications and reducing the mortality rate.
Shtwai Alsubai   +5 more
doaj   +1 more source

A single photon produces general W state of N qubits and its application [PDF]

open access: yes, 2007
Based on the Wu's scheme[1], We prepare the general N-qubit W state. We find that the concurrence of two qubits in general N-qubit W state is only related to their coefficients and we successfully apply the general N-qubit W state to quantum state ...
Li Chong   +6 more
core   +2 more sources

Gravitational Qubits [PDF]

open access: yesUniverse, 2019
We report on the behavior of two-level quantum systems, or qubits, in the background of rotating and non-rotating metrics and provide a method to derive the related spin currents and motions. The calculations are performed in the external field approximation.
openaire   +3 more sources

Invariance of separability probability over reduced states in 4x4 bipartite systems [PDF]

open access: yes, 2017
The geometric separability probability of composite quantum systems is extensively studied in the last decades. One of most simple but strikingly difficult problem is to compute the separability probability of qubit-qubit and rebit-rebit quantum states ...
Andai, Attila, Lovas, Attila
core   +2 more sources

Reading a Single Qubit System Using Weak Measurement with Variable Strength [PDF]

open access: yes, 2016
Acquiring information about an unknown qubit in a superposition of two states is essential in any computation process. Quantum measurement, or sharp measurement, is usually used to read the information contents of that unknown qubit system.
Younes, Ahmed
core   +2 more sources

Home - About - Disclaimer - Privacy