Publications

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+00:00 September 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 [...]

2017-08-11T10:19:20+00:00 August 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 [...]

2017-07-25T12:16:48+00:00 July 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+00:00 June 26th, 2017|News, Publications|0 Comments

IQIM-members’ papers stand the test of time

Google Scholar released a new collection of Classic Papers “a collection of highly-cited papers in their area of research that have stood the test of time.” They include the ten most-cited articles published ten years earlier over a broad range of research topics, such as Life Sciences & Earth Sciences, Business, Economics & Management, Physics [...]

2017-06-15T14:10:32+00:00 June 15th, 2017|News, Publications|0 Comments

Quantum voting and violation of Arrow’s impossibility theorem

A new paper by Ning Bao, DuBridge Postdoctoral Scholar in Theoretical Physics, and Graduate Student, Nicole Yunger Halpern has been selected as a Physical Review A Editor's selection. In Quantum voting and violation of Arrow's impossibility theorem [a] quantum voting system is proposed in the tradition of quantum game theory. It is shown that this [...]

2017-06-07T17:21:53+00:00 June 7th, 2017|News, Publications|0 Comments

Code Properties from Holographic Geometries

John Preskill and former IQIM Postdoctoral Scholar, Fernando Pastawski present new work in Code Properties from Holographic Geometries Phys. Rev. X 7, 021022 (2017). An overview is presented in the paper's Popular Summary: This figure illustrates uberholography for the case of a two-dimensional hyperbolic bulk geometry. The inner logical boundary is contained inside the [...]

2017-06-07T17:18:57+00:00 May 23rd, 2017|News, Publications|0 Comments

Hsieh group discovers first 3D quantum liquid crystal

These images show light patterns generated by a rhenium-based crystal using a laser method called optical second-harmonic rotational anisotropy. At left, the pattern comes from the atomic lattice of the crystal. At right, the crystal has become a 3-D quantum liquid crystal, showing a drastic departure from the pattern due to the atomic lattice [...]

2017-05-11T12:57:44+00:00 May 1st, 2017|News, Publications, Uncategorized|0 Comments

Paper by Xie Chen “Symmetry Fractionalization in Two Dimensional Topological Phases” featured

A recent paper by Xie Chen Symmetry Fractionalization in Two Dimensional Topological Phases is available in Review in Physics. Symmetry fractionalization describes the fascinating phenomena that excitations in a 2D topological system can transform under symmetry in a fractional way. For example in fractional quantum Hall systems, excitations can carry fractional charges while the electrons [...]

2017-03-16T12:23:21+00:00 March 15th, 2017|News, Publications|0 Comments

Union of two physics tools sheds light on quantum chaos

IQIM graduate student Nicole Yunger Halpern explores quantum chaos in her new publication Jarzynski-like equality for the out-of-time-ordered correlator What do black holes have in common with DNA? Black holes are chaotic quantum systems, which scramble information rapidly. DNA obeys fluctuation relations, equations that govern the energy needed to perform tasks like the uncoiling a [...]

2017-02-20T11:46:33+00:00 January 26th, 2017|Publications|0 Comments