Asset Details
Do you wish to reserve the book?
Spatial quantum noise interferometry in expanding ultracold atom clouds
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
Spatial quantum noise interferometry in expanding ultracold atom clouds
Do you wish to request the book?
Spatial quantum noise interferometry in expanding ultracold atom clouds
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
Spatial quantum noise interferometry in expanding ultracold atom clouds
2005
Overview
How physics became cool
It is ten years since the exotic form of matter known as a Bose–Einstein condensate was first created. It was the birth of ultra-low-temperature physics, and practitioners gathered last month in Banff, Canada, to celebrate and discuss the latest news, as Karen Fox reports. And this week a new development that could have a major impact in the field is announced. In the 1950s, Hanbury Brown and Twiss showed that it is possible to measure angular sizes of astronomical radio sources from correlations of signal intensities in independent detectors. ‘HBT interferometry’ later became a key technique in quantum optics, and now it has been harnessed to identify a quantum phase of ultracold bosonic atoms.
In a pioneering experiment
1
, Hanbury Brown and Twiss (HBT) demonstrated that noise correlations could be used to probe the properties of a (bosonic) particle source through quantum statistics; the effect relies on quantum interference between possible detection paths for two indistinguishable particles. HBT correlations—together with their fermionic counterparts
2
,
3
,
4
—find numerous applications, ranging from quantum optics
5
to nuclear and elementary particle physics
6
. Spatial HBT interferometry has been suggested
7
as a means to probe hidden order in strongly correlated phases of ultracold atoms. Here we report such a measurement on the Mott insulator
8
,
9
,
10
phase of a rubidium Bose gas as it is released from an optical lattice trap. We show that strong periodic quantum correlations exist between density fluctuations in the expanding atom cloud. These spatial correlations reflect the underlying ordering in the lattice, and find a natural interpretation in terms of a multiple-wave HBT interference effect. The method should provide a useful tool for identifying complex quantum phases of ultracold bosonic and fermionic atoms
11
,
12
,
13
,
14
,
15
.
Publisher
Nature Publishing Group UK,Nature Publishing,Nature Publishing Group
Subject
Atom and neutron interferometry
/ Atomic and molecular physics
/ Atomic properties and interactions with photons
/ Classical and quantum physics: mechanics and fields
/ Exact sciences and technology
/ Fundamental areas of phenomenology (including applications)
/ Humanities and Social Sciences
/ letter
/ Noise
/ Optical cooling of atoms; trapping
/ Optics
/ Other
/ Photon interactions with atoms
/ Physics
/ Quantum fluctuations, quantum noise, and quantum jumps
/ Rubidium
/ Science
