ITAMP News
Link to ITAMP During the Pandemic Seminars:
https://www.youtube.com/playlist?list=PLCoSh1h28ieL2m-Hq0ko5fiVkWPz6IeDi
The journal selected Nicole Yunger Halpern paper "Nonlinear Bell inequality for macroscopic measurements" for highlighting as an Editor's suggestion.
The quantum equivalent of seeing bacteria through everyday glasses
Entanglement—strong correlations that quantum particles can share— divides quantum physics from the everyday, or classical, world. Detecting entanglement in, for example, quantum computers and quantum networks is important: Only if nonclassical does a device have the potential to solve problems or to communicate information in ways impossible for today’s computers and telephones. Quantum systems are small, whereas classical systems are large. So conventional wisdom dictates that we can detect entanglement only if able to measure systems very precisely, similarly to how we can see bacteria only if given a microscope. This paper shows how to see bacteria through ordinary glasses, so to speak—how to detect entanglement amongst many particles by measuring only large-scale properties coarsely. The scheme works if the particles interact with each other in a limited fashion. Examples include detecting entanglement amongst photons (particles of light) by measuring the overall intensity of a beam of light. The photon proposal is testable in laboratories today; more- speculative applications include biochemistry and cosmology. This work challenges intuitions about the quantum-classical divide while helping us detect deviations from our everyday world.
The organizers of the ITAMP supported BlackInPhysics week in Physics Today
(https://physicstoday.scitation.org/do/10.1063/PT.6.4.20201026b/full/)
Well done.
This week, Oct. 25-31 is BlackInPhysics week. ITAMP is sponsoring this event.
You can check the status of activities here
(https://twitter.com/BlackinPhysics/status/1316506525964406785)
and here (blackinphysics.org).
Nicole Yunger Halpern, Postdoctoral Fellow at ITAMP, Center for Astrophysics, Harvard and Smithsonian, won “International Quantum Technology Emerging Researcher Award” from the Institute of Physics. The announcement appears at https://www.miragenews.com/iop-publishing-s-international-quantum-techno...
Her acceptance-speech video that records her thanks to ITAMP for its support https://youtu.be/_1KDyeKvqZo
You may access the article through the link below:
Researchers including ITAMP Fellow Nicole Yunger Halpern recently proved that quantum physics can enhance metrology, if a simple extra measurement is performed during an experiment. The proof technique hinges on mathematical objects that resemble probabilities but that can assume negative values when describing quantum systems. The result was published in Nature Communications and featured in a news article by the University of Cambridge:
https://www.cam.ac.uk/research/news/quantum-negativity-can-power-ultra-p...
ITAMP has a funded program of summer fellowships for students and faculty from under-represented academic institutions. We will double our effort in the coming year to recruit more students and faculty advisors from HBCU and other minority-serving colleges.
