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- B Andrei Bernevig, Taylor L Hughes, Shou-Cheng Zhang
- Science
- 2006

We show that the quantum spin Hall (QSH) effect, a state of matter with topological properties distinct from those of conventional insulators, can be realized in mercury telluride-cadmium telluride semiconductor quantum wells. When the thickness of the quantum well is varied, the electronic state changes from a normal to an "inverted" type at a critical… (More)

- Chaoxing Liu, Taylor L Hughes, Xiao-Liang Qi, Kang Wang, Shou-Cheng Zhang
- Physical review letters
- 2008

The quantum spin Hall (QSH) state is a topologically nontrivial state of quantum matter which preserves time-reversal symmetry; it has an energy gap in the bulk, but topologically robust gapless states at the edge. Recently, this novel effect has been predicted and observed in HgTe quantum wells and in this Letter we predict a similar effect arising in… (More)

- Qinglei Meng, Vasudha Shivamoggi, Taylor L. Hughes, Matthew J. Gilbert, Smitha Vishveshwara
- 2012

We explore a spin Josephson effect in a system of two ferromagnets coupled by a tunnel junction formed of 2D time-reversal invariant topological insulators. In analogy with the more commonly studied instance of the Josephson effect for charge in superconductors, we investigate properties of the phase-coherent spin current resulting from the misalignment of… (More)

- Xiao-Liang Qi, Taylor L Hughes, S Raghu, Shou-Cheng Zhang
- Physical review letters
- 2009

We construct time-reversal invariant topological superconductors and superfluids in two and three dimensions. These states have a full pairing gap in the bulk, gapless counterpropagating Majorana states at the boundary, and a pair of Majorana zero modes associated with each vortex. The superfluid 3He B phase provides a physical realization of the… (More)

- Markus König, Hartmut Buhmann, +4 authors Shou-Cheng Zhang
- 2008

The search for topologically non-trivial states of matter has become an important goal for condensed matter physics. Recently, a new class of topological insulators has been proposed. These topological insulators have an insulating gap in the bulk, but have topologically protected edge states due to the time reversal symmetry. In two dimensions the helical… (More)

- Cris E Hughes, Chelsey A Juarez, Taylor L Hughes, Alison Galloway, Gillian Fowler, Shirley Chacon
- Journal of forensic sciences
- 2011

The nonmetric "trait list" methodology is widely used for estimating ancestry of skeletal remains. However, the effects of the method's embedded subjectivity on subsequent accuracy and consistency are largely unknown. We develop a mathematical simulation to test whether variation in the application of the "trait list" method alters the ancestry estimation… (More)

- Travis Dirks, Taylor L. Hughes, +4 authors Paul M. Goldbart
- 2011

When a low-energy electron is incident on an interface between a metal and superconductor, it causes the injection of a Cooper pair into the superconductor and the generation of a hole that reflects back into the metal—a process known as Andreev reflection. In confined geometries, this process can give rise to discrete Andreev bound states (ABS), which can… (More)

- Steven T Flammia, Alioscia Hamma, Taylor L Hughes, Xiao-Gang Wen
- Physical review letters
- 2009

We generalize the topological entanglement entropy to a family of topological Rényi entropies parametrized by a parameter alpha, in an attempt to find new invariants for distinguishing topologically ordered phases. We show that, surprisingly, all topological Rényi entropies are the same, independent of alpha for all nonchiral topological phases. This… (More)

- Taylor L Hughes, Robert G Leigh, Eduardo Fradkin
- Physical review letters
- 2011

We consider the viscoelastic response of the electronic degrees of freedom in 2D and 3D topological insulators (TI's). Our primary focus is on the 2D Chern insulator which exhibits a bulk dissipationless viscosity analogous to the quantum Hall viscosity predicted in integer and fractional quantum Hall states. We show that the dissipationless viscosity is… (More)

- Wladimir A Benalcazar, B Andrei Bernevig, Taylor L Hughes
- Science
- 2017

The Berry phase provides a modern formulation of electric polarization in crystals. We extend this concept to higher electric multipole moments and determine the necessary conditions and minimal models for which the quadrupole and octupole moments are topologically quantized electromagnetic observables. Such systems exhibit gapped boundaries that are… (More)