Quantum many-body scars, connection to Floquet automata, and ‘broken unitary’ dynamics
Quantum Many-Body scars represent a new paradigm of breaking eigenstate thermalization hypothesis—a vanishing number of states in the spectrum exhibit area law entanglement while being dispersed at equally spaced energies throughout a spectrum of volume-law entangled states. This is in stark contrast to many-body localization, where all eigenstates are area-law entangled, or a thermalizing system, where states are volume law entangled. Despite the fact that very few states exhibit such low entanglement, they have a remarkable effect on the dynamics of the system.
Quantum Back-action Limits in Dispersively Measured Bose-Einstein Condensates
In recent years, there have been rapid breakthroughs in quantum technologies that offer new opportunities for advancing the understanding of basic quantum phenomena; realizing novel strongly correlated systems; and enhancing applications in quantum communication, computation, and sensing. Cutting edge quantum technologies simultaneously require high fidelity quantum-limited measurements and control.
Two Light-Trapping Techniques Combine for the Best of Both Worlds
Taming rays of light and bending them to your will is tricky business. Light travels fast and getting a good chunk of it to stay in one place for a long time requires a lot of skillful coaxing. But the benefits of learning how to hold a moonbeam (or, more likely, a laser beam) in your hand, or on a convenient chip, are enormous. Trapping and controlling light on a chip can enable better lasers, sensors that help self-driving cars “see,” the creation of quantum-entangled pairs of photons that can be used for secure communication, and fundamental studies of the basic interactions between light and atoms—just to name a few.
JQI Logos
There are several different versions of the JQI logo available on Google Drive. If you need to use the JQI logo for a poster or presentation, please select one of these images.
Relatively Certain
Hear the latest news about everything from quantum computers to astrophysics, all straight from scientists at the University of Maryland. Relatively Certain is produced by the Joint Quantum Institute and hosted by a rotating cast, featuring Chris Cesare, Emily Edwards and Dina Genkina. Episodes from Quantum Conversations, a prior series focused entirely on quantum physics, will remain available under the new name.