a universal matter-wave interferometer with optical gratings in the time domain
TRANSCRIPT
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Philipp Haslinger
Music by Adrian Artacho
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by Adrian Artacho
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Quantum-video
www.quantumnano.at
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Douglas Hofstadter
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Motivation
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Δx
g
v
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g
ds dBmax
dB
gd
2
g
g
TL
s
d
mv
hdB
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Δx
g
v
dB
T
gL
2
dB
T
gL
2
mv
hdB
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g
ds dBmax
g
d
mv
hs max
Time - domain
g
t
m
hts max)(
mv
hdB g
g = s max
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g
d
mv
hs max
Time - domain
d
g
t
m
hts max)(
g
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g
d
mv
hs max
Time - domain
d
g
t
m
hts max)(
g
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g
d
mv
hs max
Time - domain
d
g
t
m
hts max)(
g
Interference pattern of faster particles
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g
d
mv
hs max
Time - domain
d
g
t
m
hts max)(
g
Interference pattern of slower particles
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g
d
mv
hs max
Time - domain
g
t
m
hts max)(
After the same time all particles with the same mass produce the same interference, regardless of their velocities!
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nmnm
g laser 5,782
157
2
g
dB
T
gL
2
h
mgTT
2
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t=0
to MCP
interferometer mirror pulsed source TOF MS
t=TT
hmgTT /2
tsource tdetection
mass
sig
nal
200 400 600 800 1000 1200 1400 1600 1800 2000 2200
0
2
4
6
8
10
12
x 105
Pulsed
cluster source
t=2TT
157 nm post
ionization
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Haslinger et al. Nature Physics (2013)
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Music
by Adrian Artacho
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3 4 5 6 7 8 9 10 11 12 13
0
0.2
0.4
0.6
0.8
cluster number
no
rm.
co
ntr
ast
3 4 5 6 7 8 9 10 11
0
0.2
0.4
0.6
0.8
1
cluster number
no
rm.
co
ntr
ast
C8H10N4O2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15-0.2
0
0.2
0.4
0.6
cluster number
no
rm.
co
ntr
ast
C8H8O3
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Limits & Outlook:
•
•
•
•
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Limits & Outlook:
•
•
•
•
Erwin Schrödinger‘s grave in Alpbach
It is not „written in stone“
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Limits & Outlook:
•
•
•
•
It is „written in stone“
At University of Vienna
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Team 2013
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Philipp Haslinger Bordeaux 2013
Time-domain interferometry