Publications

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+00:00June 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+00:00April 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+00:00April 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+00:00January 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+00:00January 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+00:00October 26th, 2017|News, Publications|0 Comments

Faraon Group Develops First On-Chip Nanoscale Optical Quantum Memory

Artist's depiction of Faraon Group device. Credit: Ella Maru Studio Optical quantum memories are essential elements in quantum networks for long distance distribution of quantum entanglement. Recent work by the Faraon group led to development of a computer chip with nanoscale optical quantum memory. "This technology not only leads to extreme miniaturization of [...]

2017-09-22T14:59:05+00:00September 22nd, 2017|News, Publications, Uncategorized|0 Comments

Brandão study presents a new quantum algorithm related to semidefinite problems

A new Caltech study, by Fernando Brandão and collaborators, demonstates that quantum computing could be applied to speed up solutions to "semidefinite programs" a class of optimization problems."One of the goals of quantum computing is to speed up computations to levels that far exceed what classical computers can do," says Fernando Brandão, the Bren Professor [...]

2018-03-15T16:23:42+00:00August 11th, 2017|News, Publications|0 Comments

New Paper MBL-mobile: Many-body-localized engine

Schematic of many-body-localized (MBL) engine. Figure 1 from the paper. Authors Nicole Yunger Halpern, Christopher White, IQIM/Burke Institute alum Sarang Gopalakrishnan and Gil Refael released a new paper in which they designed an engine formed from a many-body localized system. The project combines quantum many-body physics with quantum thermodynamic, and features two branches [...]

2018-03-15T16:25:59+00:00July 25th, 2017|News, Publications, Uncategorized|0 Comments

Alicea work included in Viewpoint: A Roadmap for a Scalable Topological Quantum Computer

Recent work by Jason Alicea, IQIM Postdoctoral Scholar alum Torsten Karzig and collaborators is featured as a Physics Viewpoint: A Roadmap for a Scalable Topological Quantum Computer. “ … the race to build a quantum computer has many competitors pursuing a variety of approaches, some of which appear to be on the verge of creating [...]

2017-07-26T15:55:56+00:00June 26th, 2017|News, Publications|0 Comments