Abstract
We introduce a simple optical gate to fuse arbitrary-size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half-wave plate (HWP) and two photon detectors. We study, numerically and analytically, the necessary resource consumption for preparing larger W-states by fusing smaller ones with the proposed fusion gate. We show analytically that resource requirement scales at most sub-exponentially with the increasing size of the state to be prepared. We numerically determine the resource cost for fusion without recycling where W-states of arbitrary size can be optimally prepared. Moreover, we introduce another strategy that is basedon recycling and outperforms the optimal strategy for the non-recycling case.
| Original language | English (US) |
|---|---|
| Article number | 103003 |
| Journal | New Journal of Physics |
| Volume | 13 |
| DOIs | |
| State | Published - Oct 1 2011 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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An optical fusion gate for w-states. / Ozdemir, Sahin; Matsunaga, E.; Tashima, T.; Yamamoto, T.; Koashi, M.; Imoto, N.
In: New Journal of Physics, Vol. 13, 103003, 01.10.2011.Research output: Contribution to journal › Article
TY - JOUR
T1 - An optical fusion gate for w-states
AU - Ozdemir, Sahin
AU - Matsunaga, E.
AU - Tashima, T.
AU - Yamamoto, T.
AU - Koashi, M.
AU - Imoto, N.
PY - 2011/10/1
Y1 - 2011/10/1
N2 - We introduce a simple optical gate to fuse arbitrary-size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half-wave plate (HWP) and two photon detectors. We study, numerically and analytically, the necessary resource consumption for preparing larger W-states by fusing smaller ones with the proposed fusion gate. We show analytically that resource requirement scales at most sub-exponentially with the increasing size of the state to be prepared. We numerically determine the resource cost for fusion without recycling where W-states of arbitrary size can be optimally prepared. Moreover, we introduce another strategy that is basedon recycling and outperforms the optimal strategy for the non-recycling case.
AB - We introduce a simple optical gate to fuse arbitrary-size polarization entangled W-states to prepare larger W-states. The gate requires a polarizing beam splitter (PBS), a half-wave plate (HWP) and two photon detectors. We study, numerically and analytically, the necessary resource consumption for preparing larger W-states by fusing smaller ones with the proposed fusion gate. We show analytically that resource requirement scales at most sub-exponentially with the increasing size of the state to be prepared. We numerically determine the resource cost for fusion without recycling where W-states of arbitrary size can be optimally prepared. Moreover, we introduce another strategy that is basedon recycling and outperforms the optimal strategy for the non-recycling case.
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U2 - 10.1088/1367-2630/13/10/103003
DO - 10.1088/1367-2630/13/10/103003
M3 - Article
AN - SCOPUS:80054851274
VL - 13
JO - New Journal of Physics
JF - New Journal of Physics
SN - 1367-2630
M1 - 103003
ER -