Endres & Painter groups collaborate on Telecom-Band Quantum Optics with Ytterbium Atoms and Silicon Nanophotonics

This new publication by members of the Endres and Painter groups is an Editors’ Suggestion in Physical Review, Applied. Wavelengths in the telecommunication window (ca.1.25–1.65 μm) are ideal for quantum communication, due to the low transmission loss in optical-fiber networks. To realize quantum networks operating at these wavelengths, we need long-lived quantum memories that couple efficiently [...]

2019-04-04T12:24:16-07:00April 4th, 2019|News, Publications|0 Comments

Many-particle quantum phenomena enhance engine

A recent paper by IQIM alum Nicole Yunger Halpern, Graduate Student Christopher David White, Burke Institute Alum Sarang Gopalakishnan and Gil Refael explores the possibility of applying quantum many-body localization to energy-processing technologies, such as an engine. Quantum engine based on many-body localization, Phys. Rev. B 99, 024203 – Published 22 January 2019 Many-particle quantum [...]

2019-01-23T16:19:27-07:00January 23rd, 2019|News, Publications|0 Comments

New paper by Motrunich group on OTOCs

A new paper by the Motrunich group studies out-of-time-ordered correlators (OTOCs) in hard-core boson models with short-range and long-range hopping and compares the results to the OTOCs in the Luttinger-liquid model. FIG. 2. from the paper - The overall picture of CXX(, t) calculated in (a) model Iand (b) model II, with L = [...]

2018-11-29T14:12:01-07:00November 29th, 2018|News, Publications|0 Comments

New work by Painter group “Superconducting metamaterials for waveguide QED”

A new paper in Nature Communications by members of the Painter group presents their recent work to couple a transmon qubit to a superconducting metamaterial.  Mohammad Mihosseini, Eunjong Kim, Vinicius S. Ferreira, Mahmoud Kalaee, Alp Sipahigil, Andrew J. Keller, Oskar Painter (2018) Superconducting metamaterials for waveguide quantum electrodynamics. Nature Communications, 9 . Art. No. 3706. More about [...]

2018-11-19T16:45:44-07:00September 27th, 2018|Publications|0 Comments

New paper by Jochym-O’Connor, Kubica and Yoder – Disjointness of Stabilizer Codes

Stabilizer codes are among the most successful quantum error-correcting codes, yet they have important limitations on their ability to fault tolerantly compute. In a recent paper by Sherman Fairchild Postdoctoral Scholar Tomas Jochym-O'Connor, IQIM alum Alex Kubica and Theodore Yoder introduce a new quantity, the disjointness of the stabilizer code, which, roughly speaking, is the [...]

2018-06-13T12:08:25-07:00June 13th, 2018|News, Publications|0 Comments

Thermodynamics of computing: New article by Philippe Faist and Renato Renner

Computers need energy to operate: Have you ever noticed that when rendering graphics or performing other computationally expensive tasks, your laptop heats up and drains its battery? Even though technological improvements have greatly increased the energy efficiency of computer components over the years while making them ever faster, heat dissipation remains one of the major [...]

2018-04-11T11:43:29-07:00April 11th, 2018|News, Publications|0 Comments

Quasiprobability behind the out-of-time-ordered correlator, new paper by Yunger Halpern, Swingle and Dressel

A new paper by Nicole Yunger Halpern, Brian Swingle and Justin Dressel combines the out-of-time-ordered correlator (OTOC) and the Kirkwood-Dirac (KD) quasiprobability. Quantum circuit for inferring the coarse-grained OTOC quasiprobability A from weak measurements. [Fig. 3] Two topics, evolving rapidly in separate fields, were combined recently: the out-of-time-ordered correlator (OTOC) signals quantum-information scrambling in [...]

2018-04-12T11:39:08-07:00April 11th, 2018|News, Publications|0 Comments

New work by Vidick and collaborators featured in Nature Communications

A new paper, Practical device-independent quantum cryptography via entropy accumulation by Rotem Arnon-Friedman, Frédéric Dupuis, Omar Fawzi, Renato Renner, Thomas Vidick is in the January 31 issue of Nature Communications. Conventional quantum cryptography is already well developed both in theory and experiments. This is not the case, however, for device-independent quantum cryptography, which is the [...]

2018-01-31T09:57:30-07:00January 31st, 2018|News, Publications, Uncategorized|0 Comments

Quantum Computing in the NISQ era and beyond

John Preskill presented the Keynote address at Quantum Computing for Business on December 5, 2017. His discussion of Noisy Intermediate-Scale Quantum (NISQ) was also featured on Gizmodo - We've Entered a New Era of Quantum Computing, including this excerpt quoting Preskill: Photo Credit: J. Kelly from State preservation by repetitive error detection in a superconducting [...]

2018-01-09T10:15:35-07:00January 9th, 2018|News, Publications|0 Comments

New Hsieh review “Towards properties on demand in quantum materials”

Quantum materials are on the ascent. This term embodies a vast portfolio of compounds and phenomena where ramifications of quantum mechanics are demonstrably real. Quantum materials are in the vanguard of contemporary physics in part because these systems afford an exceptional venue to uncover the many roles of symmetry, topology, dimensionality and strong correlations in [...]

2018-03-15T16:20:02-07:00October 26th, 2017|News, Publications|0 Comments