Deprecated: Implicit conversion from float 215.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 215.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 215.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27283757
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Sci+Rep
2016 ; 6
(ä): 27349
Nephropedia Template TP
gab.com Text
Speedup of quantum evolution of multiqubit entanglement states
#MMPMID27283757
Zhang YJ
; Han W
; Xia YJ
; Tian JX
; Fan H
Sci Rep
2016[Jun]; 6
(ä): 27349
PMID27283757
show ga
As is well known, quantum speed limit time (QSLT) can be used to characterize the
maximal speed of evolution of quantum systems. We mainly investigate the QSLT of
generalized N-qubit GHZ-type states and W-type states in the amplitude-damping
channels. It is shown that, in the case N qubits coupled with independent noise
channels, the QSLT of the entangled GHZ-type state is closely related to the
number of qubits in the small-scale system. And the larger entanglement of
GHZ-type states can lead to the shorter QSLT of the evolution process. However,
the QSLT of the W-type states are independent of the number of qubits and the
initial entanglement. Furthermore, by considering only M qubits among the N-qubit
system respectively interacting with their own noise channels, QSLTs for these
two types states are shorter than in the case N qubits coupled with independent
noise channels. We therefore reach the interesting result that the potential
speedup of quantum evolution of a given N-qubit GHZ-type state or W-type state
can be realized in the case the number of the applied noise channels satisfying
M?
ä
Speedup of quantum evolution of multiqubit entanglement states
(epmc).pdf