Results 41 to 50 of about 76,745 (286)

Selected Concepts of Quantum State Tomography

open access: yesOptics, 2022
Quantum state tomography (QST) refers to any method that allows one to reconstruct the accurate representation of a quantum system based on data obtainable from an experiment.
Artur Czerwinski
doaj   +1 more source

Uncertainties in quantum measurements: a quantum tomography

open access: yesJournal of Physics A: Mathematical and Theoretical, 2022
Abstract The observables associated with a quantum system S form a non-commutative algebra
A P Balachandran   +5 more
openaire   +3 more sources

Quantum Tomography twenty years later

open access: yes, 2015
A sample of some relevant developments that have taken place during the last twenty years in classical and quantum tomography are displayed. We will present a general conceptual framework that provides a simple unifying mathematical picture for all of ...
Asorey, M.   +3 more
core   +1 more source

Verifying the quantumness of bipartite correlations [PDF]

open access: yes, 2015
Entanglement is at the heart of most quantum information tasks, and therefore considerable effort has been made to find methods of deciding the entanglement content of a given bipartite quantum state.
Carmeli, Claudio   +4 more
core   +2 more sources

Simplified quantum process tomography

open access: yesNew Journal of Physics, 2009
We propose and evaluate experimentally an approach to quantum process tomography that completely removes the scaling problem plaguing the standard approach. The key to this simplification is the incorporation of prior knowledge of the class of physical interactions involved in generating the dynamics, which reduces the problem to one of parameter ...
Branderhorst, M   +3 more
openaire   +3 more sources

Quantum model averaging

open access: yesNew Journal of Physics, 2014
Standard tomographic analyses ignore model uncertainty. It is assumed that a given model generated the data and the task is to estimate the quantum state, or a subset of parameters within that model.
Christopher Ferrie
doaj   +1 more source

Maximal Entropy Approach for Quantum State Tomography

open access: yesPRX Quantum, 2021
Quantum computation has been growing rapidly in both theory and experiments. In particular, quantum computing devices with a large number of qubits have been developed by IBM, Google, IonQ, and others.
Rishabh Gupta   +3 more
doaj   +1 more source

What Can We Learn from Entanglement and Quantum Tomography?

open access: yesPhysics, 2022
Entanglement has become a hot topic in nuclear and particle physics, although many physicists are not sure they know what it means. We maintain that an era of understanding and using quantum mechanics on a dramatically new basis has arrived.
John P. Ralston
doaj   +1 more source

Finite quantum tomography via semidefinite programming

open access: yes, 2007
Using the the convex semidefinite programming method and superoperator formalism we obtain the finite quantum tomography of some mixed quantum states such as: qudit tomography, N-qubit tomography, phase tomography and coherent spin state tomography ...
A. C. Doherty   +26 more
core   +1 more source

Detailed Account of Complexity for Implementation of Circuit-Based Quantum Algorithms

open access: yesFrontiers in Physics, 2021
In this review article, we are interested in the detailed analysis of complexity aspects of both time and space that arises from the implementation of a quantum algorithm on a quantum based hardware.
Fernando R. Cardoso   +5 more
doaj   +1 more source

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