205:
43:
101:. Through a hybrid encoding this is equivalent to 50 single-mode squeezed states. The purity is increased from 98% to 99% by 12nm
215:
73:
in 200 seconds, with a maximum of 76 detected photons. The USTC group estimated that it would take 2.5 billion years for the
127:
94:
210:
200:
98:
70:
106:
160:
51:
36:
105:. The 50 single-mode squeezed states are sent into a 100-mode interferometer and sampled by 100
176:
90:
74:
65:
32:
168:
102:
56:
28:
20:
86:
151:
Ball, Philip (2020-12-03). "Physicists in China challenge Google's 'quantum advantage'".
164:
194:
39:, however Google's computer was based on superconducting materials, and not photons.
47:
172:
35:. Previously quantum supremacy has been achieved only once in 2019 by Google’s
128:"The new light-based quantum computer Jiuzhang has achieved quantum supremacy"
180:
93:
which is split into 13 paths of equal intensity and then shined on 25
77:supercomputer to perform the same calculation.
206:University of Science and Technology of China
44:University of Science and Technology of China
8:
60:, an ancient Chinese mathematical classic.
118:
63:On 3 December 2020, USTC announced in
42:Jiuzhang was developed by a team from
69:that Jiuzhang successfully performed
7:
14:
97:crystals to produce 25 two-mode
54:. The computer is named after
1:
126:Conover, Emily (2020-12-03).
109:with an efficiency of 81%.
85:The setup involves a Verdi-
232:
173:10.1038/d41586-020-03434-7
24:
27:) is the first photonic
216:Supercomputing in China
107:single-photon detectors
71:Gaussian boson sampling
165:2020Natur.588..380B
81:Experimental setup
211:Quantum computing
91:Ti:sapphire laser
75:Sunway TaihuLight
33:quantum supremacy
223:
185:
184:
148:
142:
141:
139:
138:
123:
57:Jiuzhang suanshu
29:quantum computer
26:
231:
230:
226:
225:
224:
222:
221:
220:
201:2020 in science
191:
190:
189:
188:
150:
149:
145:
136:
134:
125:
124:
120:
115:
99:squeezed states
83:
12:
11:
5:
229:
227:
219:
218:
213:
208:
203:
193:
192:
187:
186:
143:
117:
116:
114:
111:
82:
79:
46:(USTC) led by
13:
10:
9:
6:
4:
3:
2:
228:
217:
214:
212:
209:
207:
204:
202:
199:
198:
196:
182:
178:
174:
170:
166:
162:
159:(7838): 380.
158:
154:
147:
144:
133:
129:
122:
119:
112:
110:
108:
104:
100:
96:
92:
88:
80:
78:
76:
72:
68:
67:
61:
59:
58:
53:
49:
45:
40:
38:
34:
30:
22:
18:
156:
152:
146:
135:. Retrieved
132:Science News
131:
121:
84:
64:
62:
55:
41:
16:
15:
52:Lu Chaoyang
48:Pan Jianwei
195:Categories
137:2020-12-19
113:References
103:filtering
89:Mira 900
31:to claim
181:33273711
37:Sycamore
17:Jiuzhang
161:Bibcode
66:Science
21:Chinese
179:
153:Nature
87:pumped
23::
95:PPKTP
177:PMID
50:and
169:doi
157:588
197::
175:.
167:.
155:.
130:.
25:九章
183:.
171::
163::
140:.
19:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.