Publications by Dung Nguyen

Interaction Effects and Charge Quantization in Single-Particle Quantum Dot Emitters.

Physical review letters 122 (2019) 127701-

G Wagner, DX Nguyen, DL Kovrizhin, SH Simon

We discuss a theoretical model of an on-demand single-particle emitter that employs a quantum dot, attached to an integer or fractional quantum Hall edge state. Via an exact mapping of the model onto the spin-boson problem we show that Coulomb interactions between the dot and the chiral quantum Hall edge state, unavoidable in this setting, lead to a destruction of precise charge quantization in the emitted wave packet. Our findings cast doubt on the viability of this setup as a single-particle source of quantized charge pulses. We further show how to use a spin-boson master equation approach to explicitly calculate the current pulse shape in this setup.

Fractional quantum Hall systems near nematicity: Bimetric theory, composite fermions, and Dirac brackets

PHYSICAL REVIEW B 97 (2018) ARTN 195103

DX Nguyen, A Gromov, DT Son

Exact electromagnetic response of Landau level electrons

Physical Review B 95 (2017)

DX Nguyen, A Gromov

Particle-hole symmetry and composite fermions in fractional quantum Hall states

PHYSICAL REVIEW B 97 (2018) ARTN 195314

DX Nguyen, S Golkar, MM Roberts, DT Son

Algebraic approach to fractional quantum Hall effect

PHYSICAL REVIEW B 98 (2018) ARTN 241110

DX Nguyen, DT Son

Particle-Hole Duality in the Lowest Landau Level

Physical Review Letters 118 (2017)

DX Nguyen, T Can, A Gromov

Spectral sum rules and magneto-roton as emergent graviton in fractional quantum Hall effect

Journal of High Energy Physics 2016 (2016)

S Golkar, DX Nguyen, DT Son

Higher-Spin Theory of the Magnetorotons

Physical Review Letters 117 (2016)

S Golkar, DX Nguyen, MM Roberts, DT Son