| 0:00:03 | we propose and demonstrate and non sound field to what timing guess |
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| 0:00:07 | based on a designed campbell now in the family to |
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| 0:00:10 | if you to consists out to identical understanding way houses |
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| 0:00:15 | separated by delay you go to a multiple post hoc ample time travel time |
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| 0:00:21 | is the minimum time fundamental wave fronts reconstruction after the first anyway house we demonstrate |
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| 0:00:29 | the experiment mainly on the cigar shaped those einstein compensate |
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| 0:00:34 | the moment and we overcome the same |
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| 0:00:37 | each so narrow that we usually approximatively consider it a mama energetic matter way |
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| 0:00:45 | which can be described as a delta function |
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| 0:00:48 | you momentum space |
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| 0:00:50 | the first article like this house |
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| 0:00:52 | will deflect atoms and zero momentum |
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| 0:00:56 | into momentum states |
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| 0:00:58 | such as france in the minus two class in the minus four and france in |
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| 0:01:02 | the minus six amount of those |
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| 0:01:04 | i've single photon requirement |
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| 0:01:08 | then the countess eight |
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| 0:01:10 | stays in the dark |
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| 0:01:13 | if spatial distribution hardly changes |
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| 0:01:16 | we cast the period out that place |
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| 0:01:18 | is quite short |
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| 0:01:21 | and it's nonsense distribution of the changes either or the same reason |
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| 0:01:27 | what happens in the dark |
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| 0:01:29 | the faces |
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| 0:01:30 | of non-zero momentum states |
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| 0:01:33 | in that we assume |
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| 0:01:35 | the accumulated phase where everything to long-term state |
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| 0:01:39 | is proportional to the square a pizza momentum |
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| 0:01:43 | when the here we have that this is i do not impose a have tampered |
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| 0:01:47 | time |
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| 0:01:48 | the second that is passed that really inversely fact of the first one and the |
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| 0:01:53 | atoms with the initial zero among time will return to the original momentum state |
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| 0:01:59 | however things are always in perfect moment of atomic doubt cannot precisely be zero |
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| 0:02:06 | as a result after the first that espouse atoms that distributed around long to |
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| 0:02:13 | as in the minus two h back a class in the minus for each back |
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| 0:02:16 | a and france in the minus six h but okay |
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| 0:02:19 | but not writing them |
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| 0:02:22 | this situation leads to different case of face evolution in the darkness although the interval |
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| 0:02:29 | can be still out multiples of the have tell what time the second house cannot |
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| 0:02:34 | drive or the atoms into the initial momentum state |
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| 0:02:39 | in the group a patterns |
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| 0:02:41 | we the able initial momentum have the chance to perfectly return the larger the initial |
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| 0:02:47 | mountain is |
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| 0:02:48 | the s the probability of a region is so he comes the momentum filter please |
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| 0:02:54 | read out article for the more information thank you |
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