Multiparameter critical quantum metrology with impurity probes

G Mihailescu, A Bayat, S Campbell… - Quantum Science and …, 2024‏ - iopscience.iop.org
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Quantum simulation of an exotic quantum critical point in a two-site charge Kondo circuit

W Pouse, L Peeters, CL Hsueh, U Gennser… - Nature Physics, 2023‏ - nature.com
Tuning a material to the cusp between two distinct ground states can produce physical
properties that are unlike those in either of the neighbouring phases. Advances in the …

Fractional entropy of multichannel kondo systems from conductance-charge relations

C Han, Z Iftikhar, Y Kleeorin, A Anthore, F Pierre… - Physical Review Letters, 2022‏ - APS
Fractional entropy is a signature of nonlocal degrees of freedom, such as Majorana zero
modes or more exotic non-Abelian anyons. Although direct experimental measurements …

Electronic measurements of entropy in meso-and nanoscale systems

E Pyurbeeva, JA Mol, P Gehring - Chemical Physics Reviews, 2022‏ - pubs.aip.org
Entropy is one of the most fundamental quantities in physics. For systems with few degrees
of freedom, the value of entropy provides a powerful insight into its microscopic dynamics …

[HTML][HTML] Nanoscale single-electron box with a floating lead for quantum sensing: Modeling and device characterization

N Petropoulos, X Wu, A Sokolov, P Giounanlis… - Applied Physics …, 2024‏ - pubs.aip.org
We present an in-depth analysis of a single-electron box (SEB) biased through a floating
node technique that is common in charge-coupled devices. The device is analyzed and …

Parafermion in the Double Charge Kondo Model

DB Karki, E Boulat, W Pouse, D Goldhaber-Gordon… - Physical Review Letters, 2023‏ - APS
Quantum impurity models with frustrated Kondo interactions can support quantum critical
points with fractionalized excitations. Recent experiments [W. Pouse, Nat. Phys.(2023) …

Revealing universal Majorana fractionalization using differential shot noise and conductance in nonequilibrium states controlled by tunneling phases

S Smirnov - Physical Review B, 2022‏ - APS
Universal fractionalization of quantum transport characteristics in Majorana quantum dot
devices is expected to emerge for well separated Majorana bound states. We show that the …

Entanglement measures of Majorana bound states

VK Vimal, J Cayao - Physical Review B, 2024‏ - APS
Majorana bound states emerge in topological superconductors as zero-energy edge states
exhibiting spatial nonlocality. Despite the enormous advances, the detection of Majorana …

Majorana differential shot noise and its universal thermoelectric crossover

S Smirnov - Physical Review B, 2023‏ - APS
Nonequilibrium states driven by both electric bias voltages V and temperature differences Δ
T (or thermal voltages e VT≡ k B Δ T) are unique probes of various systems. Whereas …

Many-body quantum interference route to the two-channel kondo effect: Inverse design for molecular junctions and quantum dot devices

S Sen, AK Mitchell - Physical Review Letters, 2024‏ - APS
Molecular junctions—whether actual single molecules in nanowire break junctions or
artificial molecules realized in coupled quantum dot devices—offer unique functionality due …