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- Namit Anand, Colin Benjamin
- Quantum Information Processing
- 2015

In a seminal paper, Meyer[1] described the advantages of quantum game theory by looking at the classical penny flip game. A player using quantum strategy can win against a classical player almost 100% of the time. Here we make a slight modification of the quantum game, with the two players sharing an entangled state to begin with. We then analyse two… (More)

- Emily J. Pritchett, Colin Benjamin, +4 authors John M. Martinis
- 2010

Emily J. Pritchett, Colin Benjamin, 2 Andrei Galiautdinov, Michael R. Geller, Andrew T. Sornborger, Phillip C. Stancil, 2 and John M. Martinis Department of Physics and Astronomy, University of Georgia, Athens, GA 30602 Center for Simulational Physics, University of Georgia, Athens, GA 30602 Department of Mathematics and Faculty of Engineering, University… (More)

- Namit Anand, Colin Benjamin
- ArXiv
- 2014

- Colin Benjamin
- 2006

Even though quantum pumping is a very promising field, it has unfortunately not been unambiguously experimentally detected. The reason being that in the experiments the rectification effect overshadows the pumped current. One of the better known ways to detect it is by using the magnetic field symmetry properties of the rectified and pumped currents. The… (More)

- Arjun Mani, Colin Benjamin
- Journal of physics. Condensed matter : an…
- 2016

On the surface of 2D topological insulators, 1D quantum spin Hall (QSH) edge modes occur with Dirac-like dispersion. Unlike quantum Hall (QH) edge modes, which occur at high magnetic fields in 2D electron gases, the occurrence of QSH edge modes is due to spin-orbit scattering in the bulk of the material. These QSH edge modes are spin-dependent, and… (More)

- Jishnu Rajendran, Colin Benjamin
- ArXiv
- 2017

Parrondo’s paradox is ubiquitous in games, ratchets and random walks.The apparent paradox, devised by Juan M. R. Parrondo, that two losing games A and B can produce an winning outcome has been adapted in many physical and biological systems to explain their working. However, proposals on demonstrating Parrondo’s paradox using quantum walks failed in the… (More)

- Nilesh Vyas, Colin Benjamin
- ArXiv
- 2017

S. J. van Enk and R. Pike in PRA 66, 024306 (2002), argue that the equilibrium solution to a quantum game isn’t unique but is already present in the classical game itself. In this work, we debunk this assertion by showing that a random strategy in a particular quantum (Hawk-Dove) game is unique to the quantum game. In other words the equilibrium solution of… (More)

- S K Firoz Islam, Colin Benjamin
- Nanotechnology
- 2016

The quantum magnetotransport properties of a monolayer of molybdenum disulfide are derived using linear response theory. In particular, the effect of topological terms on longitudinal and Hall conductivity is analyzed. The Hall conductivity exhibits fractional steps in the integer quantum Hall regime. Further complete spin and valley polarization of the… (More)

- Firoz Islam, Colin Benjamin
- Journal of physics. Condensed matter : an…
- 2016

The spin-orbit effect in graphene is too muted to have any observable significance with respect to its application in spintronics. However, graphene technology is too valuable to be rendered impotent to spin transport. In this communication we look at the effect of adiabatically twisting a single-molecule magnet embedded in a graphene monolayer.… (More)

- Arjun Mani, Colin Benjamin
- Scientific reports
- 2017

Quantum Hall edge modes are chiral while quantum spin Hall edge modes are helical. However, unlike chiral edge modes which always occur in topological systems, quasi-helical edge modes may arise in a trivial insulator too. These trivial quasi-helical edge modes are not topologically protected and therefore need to be distinguished from helical edge modes… (More)

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