Results 51 to 60 of about 237,222 (291)

Markovian master equation for three interacting qubits in weak coupling limit: Pedagogical example [PDF]

open access: yesKragujevac Journal of Science
While models of one qubit and two qubits open quantum systems are widely used in contemporary physical literature, especially one dealing with the problems of quantum information and computation, model of three qubits is rarely exploited.
Arsenijević Momir D.
doaj   +1 more source

Bifurcation Oscillator as an Advanced Sensor for Quantum State Control

open access: yesSensors, 2022
We study bifurcation behavior of a high-quality (high-Q) Josephson oscillator coupled to a superconducting qubit. It is shown that the probability of capture into the state of dynamic equilibrium is sensitive to qubit states.
Dmitrii Pashin   +3 more
doaj   +1 more source

Optimal simulation of three-qubit gates [PDF]

open access: yes, 2013
In this paper, we study the optimal simulation of three-qubit unitary by using two-qubit gates. First, we give a lower bound on the two-qubit gates cost of simulating a multi-qubit gate.
Ying, Mingsheng, Yu, Nengkun
core  

Improved qubit bifurcation readout in the straddling regime of circuit QED

open access: yes, 2012
We study bifurcation measurement of a multi-level superconducting qubit using a nonlinear resonator biased in the straddling regime, where the resonator frequency sits between two qubit transition frequencies.
A. Blais   +6 more
core   +1 more source

Deterministic Detection of Single Ion Implantation

open access: yesAdvanced Engineering Materials, EarlyView.
Focused ion beam implantation with high detection efficiencies will enable the rapid and scalable fabrication of advanced spin‐based technologies such as qubits. This work presents the detection efficiencies of a wide range of ions implanted into solid‐state hosts, with efficiencies of >90% recorded for ion species and substrate combinations of ...
Mason Adshead   +6 more
wiley   +1 more source

Greedy gradient-free adaptive variational quantum algorithms on a noisy intermediate scale quantum computer

open access: yesScientific Reports
Hybrid quantum-classical adaptive Variational Quantum Eigensolvers (VQE) hold the potential to outperform classical computing for simulating many-body quantum systems.
César Feniou   +6 more
doaj   +1 more source

FEATURES using reversible logic operations IN MODELING IRREVERSIBLE COMPUTING on the reversibly COMPUTER

open access: yesСовременная наука и инновации, 2022
Information can be recorded in the quantum state and are transmitted via the physical channel. The theory of quantum coding and information theory quantum computing related. In any information system ( classical or quantum) will always contain errors, as
Svetlana Anatolevna Inozemtseva
doaj  

A Qubit Represented by the Oscillator’s Quantum States in Magnetic Resonance Force Microscopy

open access: yesMagnetochemistry, 2022
We consider magnetic resonance force microscopy (MRFM) in the situation when the frequency of the electron spin resonance matches the fundamental frequency of the cantilever with a ferromagnetic particle attached to its tip.
Panayiotis Christou   +1 more
doaj   +1 more source

Concurrence classes for an arbitrary multi-qubit state based on positive operator valued measure

open access: yes, 2005
In this paper, we propose concurrence classes for an arbitrary multi-qubit state based on orthogonal complement of a positive operator valued measure, or POVM in short, on quantum phase.
Akhtarshenas S J   +15 more
core   +1 more source

Encoding One Logical Qubit Into Six Physical Qubits [PDF]

open access: yes, 2008
We discuss two methods to encode one qubit into six physical qubits. Each of our two examples corrects an arbitrary single-qubit error. Our first example is a degenerate six-qubit quantum error-correcting code.
Bilal Shaw   +9 more
core   +3 more sources

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