• Corpus ID: 158047027

Expanding possibilities of quantum state engineering and amplifying optical Schrodinger kitten state

@article{Mikheev2019ExpandingPO,
title={Expanding possibilities of quantum state engineering and amplifying optical Schrodinger kitten state},
author={Evgeny Mikheev and Sergey A. Podoshvedov and Nguyen Ba An},
journal={arXiv: Quantum Physics},
year={2019}
}
• Published 17 May 2019
• Physics
• arXiv: Quantum Physics
We demonstrate an optical method to engineer optical Schrodinger cat states (SCSs) of large amplitude in the range from 2 to 3 with high fidelity close to 0.99. The approach uses the {\alpha}-representation of the SCSs in infinite Hilbert with base displaced number states characterized by the displacement amplitude {\alpha}. An arbitrary {\alpha}-representation of SCSs enables to manipulate the amplitudes in wider range of parameters that which greatly expands the possibilities for generation…

References

SHOWING 1-10 OF 34 REFERENCES

• Physics
Scientific Reports
• 2019
We present novel theory of effective realization of large-size optical Schrödinger cat states, which play an important role for quantum communication and quantum computation in the optical domain
We study the method of generation of states that approximate superpositions of large-amplitude coherent states (SCSs) with high fidelity in free-traveling fields. Our approach is based on the
• Physics
• 1997
A scheme for generating Schrodinger-cat-like states of a single-mode optical field by means of conditional measurement is proposed. Feeding a squeezed vacuum into a beam splitter and counting the
• Physics
Physical review letters
• 2006
The experimental observation of quantum-network-compatible light described by a nonpositive Wigner function, generated by photon subtraction from a squeezed vacuum state produced by a continuous wave optical parametric amplifier, is reported on.
• Physics
Science
• 2006
A detailed experimental analysis of a free-propagating light pulse prepared in a “Schrödinger kitten” state, which is defined as a quantum superposition of “classical” coherent states with small amplitudes, providing an essential tool for quantum information processing.
The mechanism of interaction between qubits which is based on their displaced properties is considered and superposed coherent states deterministically displace target state on equal modulo but opposite on sign values are considered.
• Physics
• 2004
It is shown that a linear superposition of two macroscopically distinguishable optical coherent states can be generated using a single photon source and simple all-optical operations. Weak squeezing
This work focuses on implementation and optimization of an irreversible analog of the Hadamard gate, which is based on photon subtraction and number and displaced number states of the quantum oscillator are connected with each other through unitary transformation matrix.
• Physics
• 2010
We have created heralded coherent-state superpositions (CSSs) by subtracting up to three photons from a pulse of squeezed vacuum light. To produce such CSSs at a sufficient rate, we used our
• Physics
Nature
• 2001
It is shown that efficient quantum computation is possible using only beam splitters, phase shifters, single photon sources and photo-detectors and are robust against errors from photon loss and detector inefficiency.