62 citations · 297 across the 14 of their papers we have counts for
14 papers
Exchange-phase erasure in anyonic Hong-Ou-Mandel interferometry
Sushanth Varada, Christian Spånslätt, Matteo Acciai
Two-particle interferometry is an important tool for extracting the exchange statistics of quantum particles. We theoretically investigate the prospects of such interferometry to p…
Thermodynamic and energetic constraints on transition probabilities of small-scale quantum systems
Ludovico Tesser, Matteo Acciai, Christian Spånslätt +2
We study the transition probabilities of a two-point measurement on a quantum system, initially prepared in a thermal state. We find two independent constraints on the difference b…
Impact of potential and temperature fluctuations on charge and heat transport in quantum Hall edges in the heat Coulomb blockade regime
Christian Spånslätt, Florian Stäbler, Eugene V. Sukhorukov +1
We present a broad study of charge and heat transport in a mesoscopic system where one or several quantum Hall edge channels are strongly coupled to a floating Ohmic contact (OC).…
Fingerprints of anti-Pfaffian topological order in quantum point contact transport
Jinhong Park, Christian Spånslätt, Alexander D. Mirlin
Despite recent experimental developments, the topological order of the fractional quantum Hall state at filling remains an outstanding question. We study conductance and sh…
Thermal conductance and noise of Majorana modes along interfaced fractional quantum Hall states
Michael Hein, Christian Spånslätt
We study transport along interfaced edge segments of fractional quantum Hall states hosting non-Abelian Majorana modes. With an incoherent model approach, we compute, for edge segm…
Charge, spin, and heat shot noises in the absence of average currents: Conditions on bounds at zero and finite frequencies
Ludovico Tesser, Matteo Acciai, Christian Spånslätt +2
Nonequilibrium situations where selected currents are suppressed are of interest in fields like thermoelectrics and spintronics, raising the question of how the related noises beha…
Determination of topological edge quantum numbers of fractional quantum Hall phases
Saurabh Kumar Srivastav, Ravi Kumar, Christian Spånslätt +5
To determine the topological quantum numbers of fractional quantum Hall (FQH) states hosting counter-propagating (CP) downstream () and upstream () edge modes, it is pivo…
Observation of ballistic upstream modes at fractional quantum Hall edges of graphene
Ravi Kumar, Saurabh Kumar Srivastav, Christian Spånslätt +5
The structure of edge modes at the boundary of quantum Hall (QH) phases forms the basis for understanding low energy transport properties. In particular, the presence of ``upstream…
Contacts, equilibration, and interactions in fractional quantum Hall edge transport
C. Spånslätt, Yuval Gefen, I. V. Gornyi +1
We study electron transport through a multichannel fractional quantum Hall edge in the presence of both interchannel interaction and random tunneling between channels, with emphasi…
Vanishing thermal equilibration for hole-conjugate fractional quantum Hall states in graphene
Saurabh Kumar Srivastav, Ravi Kumar, Christian Spånslätt +5
Transport through edge-channels is responsible for conduction in quantum Hall (QH) phases. Topology dictates quantization of both charge and thermal transport coefficients. These t…
Distinguishing between Topological and Quasi Majorana Zero Modes with a Dissipative Resonant Level
Gu Zhang, Christian Spånslätt
Distinguishing between topological Majorana zero modes and quasi Majorana modes -- trivial low energy Andreev bound states -- is an important step towards realizing topological hyb…
Non-local order parameters for states with topological electromagnetic response
Thomas Klein Kvorning, Christian Spånslätt, AtMa P. O. Chan +1
Chern insulators are states of matter characterized by a quantized Hall conductance, gapless edge modes but also a singular response to monopole configurations of an external elect…
Extended Majorana zero modes in a topological superconducting-normal T-junction
Christian Spånslätt, Eddy Ardonne
We investigate the sub gap properties of a three terminal Josephson T-junction composed of topologically superconducting wires connected by a normal metal region. This system natur…
Topological aspects of phase winding junctions in superconducting wires
Christian Spånslätt, Eddy Ardonne, Jan Carl Budich +1
We theoretically investigate Josephson junctions with a phase shift of in various proximity induced one-dimensional superconductor models. One of the salient experimental signa…