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So far marciab20 has created 42 blog entries.

Derivations of the thermal state of a quantum system that has noncommuting charges

Recently reignited interest in quantum thermodynamics has prompted information-theoretic approaches to fundamental questions, including the roles of entanglement, measurement, and noncommutation. A central concept in statistical mechanics is the thermal state. The thermal state of a system that exchanges heat with a bath, or heat and particles, or other commuting observables, is well-known. But quantum [...]

July 12th, 2016|News, Publications|0 Comments

Preskill presents Sommerfeld Lecture Series

John Preskill will be presenting the Nineteenth Arnold Sommerfeld Lecture Series this week. Each semester the Arnold Sommerfeld Center for Theoretical Physics at Ludwig-Maximilians-University (LMU), Munich invites a distinguished theoretical physicist in order to present a short series of lectures with increasing level of specialization. The lecture series includes a public talk for a general audience, [...]

July 5th, 2016|News, Uncategorized|0 Comments

Duality between Free Dirac Cone and QED derived

  Credit: APS/Alan StonebrakerFigure 1: The action of discrete symmetries on the fermionic particle (top) and its dual fermionic vortex (bottom). In a new paper by IQIM Postdoctoral Scholar David Mross together with Jason Alicea and Lesik Motrunich they explicitly derive the duality between a free electronic Dirac cone and quantum electrodynamics in [...]

June 28th, 2016|News, Publications|0 Comments

Congratulations Caltech Graduates

Congratulations Caltech's 2016 graduates. Find photos,  a video of the ceremony, links to the commencement address and more on the Caltech Commencement website. Members of IQIM who received their PhD degrees include: Michael Beverland, Tim Blasius, William Chickering, Laura De Lorenzo, Debaleena Nandi, Paraj Titum, Ari Weinstein, David Yeaton-Massey. Master of Science degrees were conferred [...]

June 10th, 2016|News, Uncategorized|0 Comments

Capturing Entanglement – a conversation with Stevan Nadj-Perge

Stevan Nadj-Perge, joined Caltech and IQIM in January as assistant professor of applied physics and materials science. "A large part of my research is focused on finding ways to store and process quantum information. Typically, if you have a quantum system, it loses its coherent properties—and therefore, its ability to store quantum information—very quickly. Quantum [...]

May 31st, 2016|News, Uncategorized|0 Comments

A conversation with Fernando Brandao

New IQIM faculty member Fernando Brandão, the Bren Professor of Theoretical Physics, studies quantum information science - working to merge quantum mechanics and computer science. In an interview with Caltech Media, he describes his work exploring entanglement developing ways to characterize and quantify entanglement. He also considers new applications of entanglement in quantum information science [...]

May 23rd, 2016|News, Uncategorized|0 Comments

Yeh Lab work on graphene featured on BBC News

The current episode of the BBC News program Horizons features work done by the Yeh lab. The program asks whether science and technology can solve some of the globe's most pressing problems; in this episode it looked at the challenges of availability for water, food and energy. In March 2015, the Yeh group published work [...]

May 16th, 2016|News|1 Comment

It takes a physicist to explain these Super Heroes

Spiros Michalakis, IQIM’s Manager of Outreach and Staff Researcher, was involved in discussions with Marvel about Ant Man and the science behind the extreme changes in his size. The new film Captain America: Civil War introduces Marvel’s Giant Man and at least a few viewers had questions about the science behind the giant suit. Read [...]

May 10th, 2016|News|0 Comments

Senior, Paul Dieterle, awarded Hertz Fellowship

Congratulations to Paul Dieterle, he is one of 12 recipients thoughout the U.S. of a Hertz Fellowship providing up to five years of support for graduate studies. As an undergraduate, Paul  has worked with IQIM faculty Oskar Painter and Keith Schwab, along with Maria Spiropulu, professor of physics and the late professor Tom Tombrello. His [...]

May 3rd, 2016|News|0 Comments

New Science article features work by Motrunich group on Dirac composite fermions

Two-dimensional momentum space view of density-density correlations. See Fig 2 in publication for full caption A recent Science article features work by IQIM alums Scott Geraedts and Roger Mong, and Professor of Theoretical Physics Lesik Motrunich with collaborators.  From Science: "All is well with particle-hole symmetry In an external magnetic field, the energy [...]

April 13th, 2016|News, Publications|0 Comments