Results 31 to 40 of about 6,358,449 (233)
Phase estimation based on four beam linear optical scheme
, 2021 Funding Information: The research was supported by the Government of the Russian Federation (Agreement 05.Y09.21.0018) and by Terra Quantum AG. Publisher Copyright: © 2021 Author(s).We demonstrate the operation of a four beam optical scheme realizing ...
V. V. Zemlyanov +9 more
core +1 more source
New Journal of Physics, 2022 We consider the task of spectral estimation of local quantum Hamiltonians. The spectral estimation is performed by estimating the oscillation frequencies or decay rates of signals representing the time evolution of states.
M E Stroeks, J Helsen, B M Terhal
doaj +1 more source
Quantum Information in Geometric Quantum Mechanics [PDF]
, 2011 A fundamental starting point in quantum information theory is the consideration of the von Neumann entropy and its generalization to relative quantum entropies.
Volkert, Georg Friedrich
core +1 more source
Quantum-enhanced stochastic phase estimation with SU(1,1) interferometer
, 2020 The quantum stochastic phase estimation has many applications in the precise measurement of various physical parameters. Similar to the estimation of a constant phase, there is a standard quantum limit for stochastic phase estimation, which can be ...
Shengshuai Liu (12796214) +7 more
core +1 more source
, 2021 | openaire: EC/H2020/862644/EU//QUARTETQuantum phase estimation is a paradigmatic problem in quantum sensing and metrology. Here we show that adaptive methods based on classical machine learning algorithms can be used to enhance the precision of quantum ...
Paraoanu, Gheorghe Sorin +3 more
core +1 more source
Adiabatic quantum counting by geometric phase estimation [PDF]
Quantum Information Processing, 2009 We design an adiabatic quantum algorithm for the counting problem, i.e., approximating the proportion, $α$, of the marked items in a given database. As the quantum system undergoes a designed cyclic adiabatic evolution, it acquires a Berry phase $2πα$. By estimating the Berry phase, we can approximate $α$, and solve the problem. For an error bound $ε$,
Chi Zhang 0059 +2 more
openaire +3 more sources
Quantum eigenvalue estimation via time series analysis
New Journal of Physics, 2019 We present an efficient method for estimating the eigenvalues of a Hamiltonian H from the expectation values of the evolution operator for various times.
Rolando D Somma
doaj +1 more source
Optimal Quantum Circuits for General Phase Estimation [PDF]
Physical Review Letters, 2007 4 pages, 3 ...
Van Dam, W. +4 more
openaire +4 more sources
Quantum Neural Network Based on Swap Test and Phase Estimation [PDF]
Jisuanji kexue yu tansuoTo address the integration of quantum computing and neural computing, this paper investigates a quantum neural network (QNN) model and its algorithm based on swap test and phase estimation.
LI Panchi, LIU Guangshuo
doaj +1 more source
Emerging experimental and computational methods for studying redox‐regulated structural transitions
FEBS Letters, EarlyView.Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass +2 more
wiley +1 more source