Results 11 to 20 of about 1,071,813 (330)
Quantum Process Nonclassicality [PDF]
Physical Review Letters, 2013 We propose a definition of nonclassicality for a single-mode quantum-optical process based on its action on coherent states. If a quantum process transforms a coherent state to a nonclassical state, it is verified to be nonclassical.
Bellini, Marco +5 more
core +6 more sources
Experimental Quantum Process Discrimination [PDF]
Physical Review Letters, 2008 Discrimination between unknown processes chosen from a finite set is experimentally shown to be possible even in the case of non-orthogonal processes.
A. Y. Kitaev +4 more
core +4 more sources
Ancilla-assisted quantum process tomography [PDF]
Physical Review Letters, 2003 Complete and precise characterization of a quantum dynamical process can be achieved via the method of quantum process tomography. Using a source of correlated photons, we have implemented several methods investigating a wide range of processes, e.g ...
Altepeter, J. B. +8 more
core +7 more sources
Quantum process capability. [PDF]
Sci Rep, 2019 AbstractPhysical processes in the quantum regime possess non-classical properties of quantum mechanics. However, methods for quantitatively identifying such processes are still lacking. Accordingly, in this study, we develop a framework for characterizing and quantifying the ability of processes to cause quantum-mechanical effects on physical systems ...
Kuo CC +5 more
europepmc +5 more sources
Quantum process randomness [PDF]
Physics Letters A, 2021 We study the optimization of any quantum process by minimizing the "randomness" in the measurement result at the output of that quantum process. We conceptualize and propose a measure of such randomness and inquire whether an optimization of the quantum process based on that measure, can reach the point where the process operates with maximum fidelity.
Sreetama Das +3 more
openaire +2 more sources
Communicating quantum processes [PDF]
Proceedings of the 32nd ACM SIGPLAN-SIGACT symposium on Principles of programming languages, 2005 We define a language CQP (Communicating Quantum Processes) for modelling systems which combine quantum and classical communication and computation. CQP combines the communication primitives of the pi-calculus with primitives for measurement and transformation of quantum state; in particular, quantum bits (qubits) can be transmitted from process to ...
Gay, S.J., Nagarajan, R.
openaire +3 more sources
IEEE Transactions on Information Theory, 2001 8 ...
Ahlswede, Rudolf, Lober, P
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Quantum renewal processes [PDF]
Scientific Reports, 2020 AbstractWe introduce a general construction of master equations with memory kernel whose solutions are given by completely positive trace-preserving maps. These dynamics going beyond the Lindblad paradigm are obtained with reference to classical renewal processes, so that they are termed quantum renewal processes.
openaire +4 more sources
Quantum walk processes in quantum devices
Heliyon, 2023 Simulation and programming of current quantum computers as Noisy Intermediate-Scale Quantum (NISQ) devices represent a hot topic at the border of current physical and information sciences. The quantum walk process represents a basic subroutine in many quantum algorithms and plays an important role in studying physical phenomena. Simulating quantum walk
Anandu Kalleri Madhu +4 more
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