Nonadiabatic landau–zener–stückelberg–majorana transitions, dynamics, and interference
Since the pioneering works by Landau, Zener, Stückelberg, and Majorana (LZSM), it has
been known that driving a quantum two-level system results in tunneling between its states …
been known that driving a quantum two-level system results in tunneling between its states …
Analog of a quantum heat engine using a single-spin qubit
A quantum two-level system with periodically modulated energy splitting could provide a
minimal universal quantum heat machine. We present the experimental realization and the …
minimal universal quantum heat machine. We present the experimental realization and the …
Majorana's approach to nonadiabatic transitions validates the adiabatic-impulse approximation
Abstract The approach by Ettore Majorana for non-adiabatic transitions between two quasi-
crossing levels is revisited and significantly extended. We rederive the transition probability …
crossing levels is revisited and significantly extended. We rederive the transition probability …
Flux qubit based detector of microwave photons
A theory of detection of microwave photons with a flux qubit based detector is presented. We
consider a semiclassical approximation with the electromagnetic field being in a coherent …
consider a semiclassical approximation with the electromagnetic field being in a coherent …
Nonlinear Landau-Zener-Stückelberg-Majorana problem
In the standard Landau-Zener-Stückelberg-Majorana (LZSM) problem, the bias sweep rate
and gap are both time independent and fully characterize the LZSM problem. We consider …
and gap are both time independent and fully characterize the LZSM problem. We consider …
Real-time observation of Cooper pair splitting showing strong non-local correlations
Controlled generation and detection of quantum entanglement between spatially separated
particles constitute an essential prerequisite both for testing the foundations of quantum …
particles constitute an essential prerequisite both for testing the foundations of quantum …
Quantifying quantum coherence of multiple-charge states in tunable Josephson junctions
J He, D Pan, M Liu, Z Lyu, Z Jia, G Yang, S Zhu… - npj Quantum …, 2024 - nature.com
Coherence and tunneling play central roles in quantum phenomena. In a tunneling event,
the time that a particle spends inside the barrier has been fiercely debated. This problem …
the time that a particle spends inside the barrier has been fiercely debated. This problem …
Pseudofermion method for the exact description of fermionic environments: From single-molecule electronics to the Kondo resonance
We develop a discrete fermion approach for modeling the strong interaction of an arbitrary
system interacting with continuum electronic reservoirs. The approach is based on a …
system interacting with continuum electronic reservoirs. The approach is based on a …
Study on the effects of anisotropic effective mass on electronic properties, magnetization and persistent current in semiconductor quantum ring with conical geometry
FAG de Lira, LFC Pereira, EO Silva - Physica E: Low-dimensional Systems …, 2024 - Elsevier
We study a 2D mesoscopic ring with an anisotropic effective mass considering surface
quantum confinement effects. Consider that the ring is defined on the surface of a cone …
quantum confinement effects. Consider that the ring is defined on the surface of a cone …
Coherent dynamics of a photon-dressed qubit
We consider the dynamics and stationary regime of a capacitively shunted transmon-type
qubit in front of a mirror. The qubit is affected by probe and dressing signals. By varying the …
qubit in front of a mirror. The qubit is affected by probe and dressing signals. By varying the …