Quantum Information Science for Fundamental Physics

Session

Evening session

18 Feb 2020, 16:30

5. Comments on QI in accelerating cosmology (phenomenological and thought-experimental)

Eva Silverstein (Stanford)

18/02/2020, 16:30

6. Quantum entropy generated by dynamical evolution

Josephine Suh

18/02/2020, 17:00

We introduce the notion of a time density matrix which captures a probabilistic ensemble of systems in specified states at different times. The quantum entropy of a time density matrix quantifies the information needed to track the unitary evolution of an arbitrary quantum system. As such it can grow with time, and is a finer probe of the dynamics of the system than the quantum entropy of a...

17. Axion and Gravitational Waves from Black Hole Superradiance

Masha Baryakhtar (NYU)

20/02/2020, 16:30

Theories beyond the Standard Model of particle physics often predict new, light, feebly interacting particles whose discovery requires novel search strategies. A light particle, the QCD axion, elegantly solves the outstanding strong-CP problem of the Standard Model; cousins of the QCD axion can also appear, and are natural dark matter candidates. I will show how rotating black holes turn into...

18. Searching for Dark Matter with Athermal Phonon Detectors Throughout the Mass Range from 50meV through 500MeV

Matt Pyle (Berkeley)

20/02/2020, 17:00

Substantial astronomical observations have established that approximately 25% of the energy density of the universe is composed of cold non-baryonic dark matter, whose detection and characterization could be key to improving our understanding of the laws of physics. Over the past three decades, physicists have largely focused on searching for dark matter within the 10 GeV-1 TeV range (WIMPs),...

19. ABRACADABRA-10cm: Searching for Axions and Preparing for DMRadio-m3

Lindley Winslow (MIT)

20/02/2020, 17:30

20. Dark Matter Detection with Magnons and Phonons

K. Zhang

20/02/2020, 18:30

21. Plasmons and Excesses in Low-Threshold Dark Matter Experiments

Yoni Kahn (UIUC)

20/02/2020, 19:00

Spectacular advances in dark matter detection experiments, using a variety of detector materials, have pushed energy thresholds below 60 eV and charge detection to single-charge resolution. Eleven such low-threshold experiments have observed an unexplained excess of events at low energies. Surprisingly, the excess rates of ~ 10 Hz/kg in semiconductor detectors are the same to within a factor...

27. Precision searches for new physics using optically levitated sensors

David Moore (Yale)

21/02/2020, 16:30

28. Exploring sensing and quantum measurement with membrane cavity optomechanics

Cindy Regal (University of Colorado)

21/02/2020, 17:00

29. Quantum metamaterial for nondestructive microwave photon detection

Alexandre Blais

21/02/2020, 18:00

Detecting traveling photons is an essential primitive for many quantum information processing tasks. We propose a single-photon detector operating in the microwave domain based on a nonlinear metamaterial built from a large number of coupled Josephson junctions. By trading local nonlinearity for large spatial extent, this approach allows for a large detection bandwidth. Using numerical...

30. TBD

Dave Schuster (Chicago)

21/02/2020, 18:30

31. HAYSTAC and the Search for Dark Matter Axions above 10 micro-eV

Reina Maruyama (Yale)

21/02/2020, 19:00

37. Panel discussion: Strategies for Advancing QIS and Fundamental Science (Raphael Bousso, Joe Lykken, Yoshihisa Yamamoto, Maria Spiropulu + ...)

Aaron Chou, Joe Lykken (Fermilab), Kathryn Zurek, Konrad Lehnert, Maria Spiropulu (Caltech), Raphael Bousso (Berkeley)

22/02/2020, 10:30

Gathering the perspective of leaders in quantum computing, quantum gravity, HEP theory and experiment. Where do we think each of the fields is going? What are near-term opportunities for cross-fertilization? How can we make best use of the opportunities offered by the National Quantum Initiative, by investments made by industry, and by the HEP Snowmass process? What are the long-term...

38. Summary/reflection (Aaron Chou, Konrad Lehnert, Brian Swingle, Kathryn Zurek)