6 papers
Quantumly controlled measurement, Hermitian conjugation and normalization in matrix-manipulation algorithms
Edward B. Fel'dman, Alexander I. Zenchuk, Wentao Qi +1
In this paper, we solve three important problems that are revealed, in particular, to matrix-manipulation algorithms. The principal novelty is introducing the concept of quantumly…
Measurement-based quantum state transfer and restoring via spin-1/2 chain interacting with environment
E. B. Fel'dman, A. I. Zenchuk
We consider the multi-qubit fixed-excitation state transfer along the spin chain with dipole-dipole interaction subjected to the interaction with environment governed by the Lindbl…
Teleportation via spin-1/2 chain in solid-state quantum architecture
E. B. Fel'dman, S. I. Doronin, E. I. Kuznetsova +1
We propose the protocol for preparing the maximally entangled Bell state between remote qubits at the ends of the spin-1/2 chain governed by the specially engineered nearest-neighb…
Coherence restoring in communication line via controlled interaction with environment
E. B. Fel'dman, I. D. Lazarev, A. N. Pechen +1
We consider the state-restoring protocol based on the controlled interaction of a linear chain with environment through { incoherent control by} the specially adjusted step-wise ti…
Two-level control over quantum state creation via entangled equal-probability state
S. I. Doronin, E. B. Fel'dman, A. I. Zenchuk
We propose the scheme realizing the two-level control over the unitary operators creating the required quantum state of the system . These operators are controlled by the…
Remarks on controlled measurement and quantum algorithm for calculating Hermitian conjugate
Edward B. Fel'dman, Alexander I. Zenchuk, Wentao Qi +1
We present two new aspects for the recently proposed algorithms for matrix manipulating based on the special encoding the matrix elements into the superposition state of a quantum…