Jennifer Choy, Ph.D., University of Wisconsin-Madison
September 2, 2021
The discrete electronic energy levels in atoms and atom-like systems and the ability to probe and control them using their interactions with electromagnetic fields have enabled a host of applications in quantum sensing and metrology. For example, individual atoms in a vacuum behave identically for the same species and have properties that do not change with time. These features make atoms excellent for sensitive measurements, leading to unprecedented degrees of accuracy and precision in atomic clocks, magnetometers, and inertial sensors. Meanwhile, analogs of trapped atoms in the solid state can be found in many color centers in wide-bandgap semiconductors.
These color centers can potentially operate at room temperature without the need for vacuum hardware and are especially well suited for sensing small and spatially varying perturbations of magnetic fields, temperature, and strain in their environment.
In this talk, Jennifer Choy, Ph.D., of the University of Wisconsin-Madison, describes the realization of quantum sensors in two material platforms: neutral alkali atoms and artificial atoms in diamond. These platforms have complementary properties that make each uniquely advantageous for certain sensing applications, as well as challenges that currently limit their sensing performance and functionality. The benefits and challenges of these platforms are illustrated through specific examples, including inertial sensing with cold-atom interferometers and magnetometry with alkali metal vapor and color centers in diamond. Choy also presents the critical developments in optical engineering and material science that are needed to improve device utility and performance in atomic and solid-state quantum sensors.
Jennifer Choy, Ph.D., is an assistant professor at the Department of Engineering Physics at the University of Wisconsin-Madison, having joined the faculty in January 2019. Prior to her time at UW-Madison, she was a principal member of technical staff at Draper Laboratory, where she led developments of atomic and optical inertial sensors. Choy’s research interests include quantum sensing, experimental atomic and optical physics, and nanophotonics. She received S.B. degrees in physics and nuclear engineering from the Massachusetts Institute of Technology, and a Ph.D. in applied physics from Harvard University.
It looks like you're in the . If this is not your location, please select the correct region or country below.
You're headed to Hamamatsu Photonics website for US (English). If you want to view an other country's site, the optimized information will be provided by selecting options below.
For modern websites to work according to visitor’s expectations, they need to collect certain basic information about visitors. To do this, a site will create small text files which are placed on visitor’s devices (computer or mobile) - these files are known as cookies when you access a website. Cookies are used in order to make websites function and work efficiently. Cookies are uniquely assigned to each visitor and can only be read by a web server in the domain that issued the cookie to the visitor. Cookies cannot be used to run programs or deliver viruses to a visitor’s device.
Cookies do various jobs which make the visitor’s experience of the internet much smoother and more interactive. For instance, cookies are used to remember the visitor’s preferences on sites they visit often, to remember language preference and to help navigate between pages more efficiently. Much, though not all, of the data collected is anonymous, though some of it is designed to detect browsing patterns and approximate geographical location to improve the visitor experience.
Certain type of cookies may require the data subject’s consent before storing them on the computer.
This website uses two types of cookies:
There are two ways to manage cookie preferences.
If you wish to restrict or block web browser cookies which are set on your device then you can do this through your browser settings; the Help function within your browser should tell you how. Alternatively, you may wish to visit www.aboutcookies.org, which contains comprehensive information on how to do this on a wide variety of desktop browsers.
Occasionally, we may use internet tags (also known as action tags, single-pixel GIFs, clear GIFs, invisible GIFs and 1-by-1 GIFs) at this site and may deploy these tags/cookies through a third-party advertising partner or a web analytical service partner which may be located and store the respective information (including your IP-address) in a foreign country. These tags/cookies are placed on both online advertisements that bring users to this site and on different pages of this site. We use this technology to measure the visitors' responses to our sites and the effectiveness of our advertising campaigns (including how many times a page is opened and which information is consulted) as well as to evaluate your use of this website. The third-party partner or the web analytical service partner may be able to collect data about visitors to our and other sites because of these internet tags/cookies, may compose reports regarding the website’s activity for us and may provide further services which are related to the use of the website and the internet. They may provide such information to other parties if there is a legal requirement that they do so, or if they hire the other parties to process information on their behalf.
If you would like more information about web tags and cookies associated with on-line advertising or to opt-out of third-party collection of this information, please visit the Network Advertising Initiative website http://www.networkadvertising.org.
We use third-party cookies (such as Google Analytics) to track visitors on our website, to get reports about how visitors use the website and to inform, optimize and serve ads based on someone's past visits to our website.
You may opt-out of Google Analytics cookies by the websites provided by Google:
We inform you that in such case you will not be able to wholly use all functions of our website.