9 papers · 1 filter
Optical quantum teleportation with known amplitude distorting factors of teleported qubits
Mikhail S. Podoshvedov, Sergey A. Podoshvedov
We develop a quantum teleportation protocol of an unknown optical single rail qubit using a hybrid quantum channel composed of continuous variable (CV) states of certain parity. Th…
Ultra-precise phase estimation without mode entanglement
Mikhail S. Podoshvedov, Sergey A. Podoshvedov
We explore optical quantum engineering of phase-parameterized continuous-variable (CV) probe states to exploit nonclassical light to solve the problem of precise phase estimation.…
Improving the efficiency of quantum engineering of SCSs by adding two demultiplexed input photons
Mikhail S. Podoshvedov, Sergey A. Podoshvedov
Conditional addition and subtraction of photons is a powerful tool for quantum engineering of continuous variable (CV) states that forms the fundamental building blocks of advanced…
Transfer of entanglement from nonlocal photon to non-Gaussian CV states
Mikhail S. Podoshvedov, Sergey A. Podoshvedov
Continuous variable (CV) entanglement refers to the type of entanglement of quantum wave-like systems that are described by continuous variables in an inherently infinite-dimension…
Beam splitters as controlled-Z gate for hybrid state
Mikhail S. Podoshvedov, Sergey A. Podoshvedov
We explore a scheme based on adding a nonlocal photon and subtracting some number of photons to entangle the initial single-mode squeezed vacuum (SMSV) state with the photon state.…
Gain of squeezing via photon subtractions
Mikhail S. Podoshvedov, Sergey A. Podoshvedov, Sergei P. Kulik
We develop a method for generating a more squeezed than single-mode squeezed vacuum (SMSV) state by subtracting 2,4,6 photons from it. In general, the more photons are subtracted,…