Light-Induced Fractional Quantum Hall Phases in Graphene. 2017

Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
Department of Physics, City College, City University of New York, New York, New York 10031, USA.

We show how to realize two-component fractional quantum Hall phases in monolayer graphene by optically driving the system. A laser is tuned into resonance between two Landau levels, giving rise to an effective tunneling between these two synthetic layers. Remarkably, because of this coupling, the interlayer interaction at nonzero relative angular momentum can become dominant, resembling a hollow-core pseudopotential. In the weak tunneling regime, this interaction favors the formation of singlet states, as we explicitly show by numerical diagonalization, at fillings ν=1/2 and ν=2/3. We discuss possible candidate phases, including the Haldane-Rezayi phase, the interlayer Pfaffian phase, and a Fibonacci phase. This demonstrates that our method may pave the way towards the realization of non-Abelian phases, as well as the control of topological phase transitions, in graphene quantum Hall systems using optical fields and integrated photonic structures.

UI MeSH Term Description Entries

Related Publications

Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
July 2014, Science (New York, N.Y.),
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
January 2019, Physical review letters,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
August 2017, Scientific reports,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
February 2024, Nature,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
November 2020, Physical review letters,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
September 2022, Nano letters,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
November 2017, Science (New York, N.Y.),
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
September 2006, Physical review letters,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
November 2009, Nature,
Areg Ghazaryan, and Tobias Graß, and Michael J Gullans, and Pouyan Ghaemi, and Mohammad Hafezi
November 2016, Nature communications,
Copied contents to your clipboard!