scholarly journals Perfect Quantum State Transfer in a Superconducting Qubit Chain with Parametrically Tunable Couplings

2018 ◽  
Vol 10 (5) ◽  
Author(s):  
X. Li ◽  
Y. Ma ◽  
J. Han ◽  
Tao Chen ◽  
Y. Xu ◽  
...  
Keyword(s):  
Quantum State ◽  
Quantum State Transfer ◽  
Superconducting Qubit ◽  
State Transfer

scholarly journals Robust quantum state transfer via topological edge states in superconducting qubit chains

2018 ◽  
Vol 98 (1) ◽  
Author(s):  
Feng Mei ◽  
Gang Chen ◽  
Lin Tian ◽  
Shi-Liang Zhu ◽  
Suotang Jia
Keyword(s):  
Quantum State ◽  
Edge States ◽  
Quantum State Transfer ◽  
Superconducting Qubit ◽  
State Transfer

QUANTUM INFORMATION PROCESSING IN AN ARRAY OF SUPERCONDUCTING TRANSMISSION LINE RESONATORS

2009 ◽  
Vol 07 (06) ◽  
pp. 1255-1267
Author(s):  
JIAN LI ◽  
JIAN ZOU ◽  
BIN SHAO
Keyword(s):  
Information Processing ◽  
Quantum Information ◽  
Transmission Line ◽  
Quantum State ◽  
Quantum Information Processing ◽  
Quantum State Transfer ◽  
Superconducting Qubit ◽  
One Dimensional ◽  
Dimensional Array ◽  
State Transfer

We consider a one-dimensional array of superconducting transmission line resonators (TLRs). The TLRs are coupled by current-biased Josephson junctions, which act as tunable couplers between each two nearest TLRs, and a superconducting qubit is fabricated in the center of each TLR. We show that some important quantum information processing, such as quantum state transfer and preparation of remote entanglement, can be achieved in this system, and we also propose a scheme for generating the W-class states.

scholarly journals Phonon-mediated quantum state transfer and remote qubit entanglement

Science ◽  
2019 ◽  
Vol 364 (6438) ◽  
pp. 368-371 ◽  
Author(s):  
A. Bienfait ◽  
K. J. Satzinger ◽  
Y. P. Zhong ◽  
H.-S. Chang ◽  
M.-H. Chou ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Quantum State ◽  
Communication Channel ◽  
Superconducting Qubits ◽  
Quantum State Transfer ◽  
Superconducting Qubit ◽  
State Transfer ◽  
Phonon Generation ◽  
Partial Transfer

Phonons, and in particular surface acoustic wave phonons, have been proposed as a means to coherently couple distant solid-state quantum systems. Individual phonons in a resonant structure can be controlled and detected by superconducting qubits, enabling the coherent generation and measurement of complex stationary phonon states. We report the deterministic emission and capture of itinerant surface acoustic wave phonons, enabling the quantum entanglement of two superconducting qubits. Using a 2-millimeter-long acoustic quantum communication channel, equivalent to a 500-nanosecond delay line, we demonstrate the emission and recapture of a phonon by one superconducting qubit, quantum state transfer between two superconducting qubits with a 67% efficiency, and, by partial transfer of a phonon, generation of an entangled Bell pair with a fidelity of 84%.

scholarly journals Quantum state transfer in spin-1 chains

2007 ◽  
Vol 75 (5) ◽  
Author(s):  
O. Romero-Isart ◽  
K. Eckert ◽  
A. Sanpera
Keyword(s):  
Quantum State ◽  
Quantum State Transfer ◽  
State Transfer

scholarly journals Effects of Kerr medium in coupled cavities on quantum state transfer

2018 ◽  
Vol 27 (03) ◽  
pp. 1850035
Author(s):  
T. M. Manosh ◽  
Muhammed Ashefas ◽  
Ramesh Babu Thayyullathil
Keyword(s):  
Quantum State ◽  
Nonlinear Medium ◽  
Adiabatic Approximation ◽  
Kerr Medium ◽  
Quantum State Transfer ◽  
Coupled Cavities ◽  
Rotating Wave Approximation ◽  
Wave Approximation ◽  
State Transfer ◽  
Rotating Wave

We study the effect of Kerr type nonlinear medium in quantum state transfer (QST). We have investigated the effect of different coupling schemes and Kerr medium parameters [Formula: see text] and [Formula: see text]. We found that the Kerr medium introduced in the connection channel can act like a controller for QST. The numerical simulations are performed without taking the adiabatic approximation. Rotating wave approximation is used in the atom–cavity interaction only in the lower coupling regime.

scholarly journals Quantum State Transfer from a Single Photon to a Distant Quantum-Dot Electron Spin

2017 ◽  
Vol 119 (6) ◽  
Author(s):  
Yu He ◽  
Yu-Ming He ◽  
Yu-Jia Wei ◽  
Xiao Jiang ◽  
Kai Chen ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Quantum State ◽  
Electron Spin ◽  
Single Photon ◽  
Quantum State Transfer ◽  
State Transfer
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