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24 papers · 2 filters
Exact non-Markovian evolution with multiple reservoirs
A. E. Teretenkov
The model of a multi-level system interacting with several reservoirs is considered. The exact reduced density matrix evolution could be obtained for this model without Markov appr…
Objective Compressive Quantum Process Tomography
Y. S. Teo, G. I. Struchalin, E. V. Kovlakov +6
We present a compressive quantum process tomography scheme that fully characterizes any rank-deficient completely-positive process with no a priori information about the process ap…
Nondestructive classification of quantum states using an algorithmic quantum computer
D. V. Babukhin, A. A. Zhukov, W. V. Pogosov
Methods of processing quantum data become more important as quantum computing devices improve their quality towards fault tolerant universal quantum computers. These methods includ…
Experimental reconstruction of spatial Schmidt modes for a wide-field SU(1,1) interferometer
Gaetano Frascella, Roman V. Zakharov, Olga V. Tikhonova +1
We study the spatial mode content at the output of a wide-field SU(1,1) interferometer, i.e. a nonlinear interferometer comprising two coherently-pumped spatially-multimode optical…
Channel-state duality and the separability problem
K. V. Antipin
Separability of quantum states is analyzed with the use of the Choi-Jamiolkowski isomorphism. Spectral separability criteria are derived. The presented approach is illustrated with…
Dynamics of moments of arbitrary order for stochastic Poisson squeezings
A. E. Teretenkov
The explicit dynamics of the moments for the GKSL equation is obtained. In our case the GKSL equation corresponds to Poisson stochastic processes which lead to unitary jumps. We co…