The topological properties of an object, associated with an integer called the topological
invariant, are global features that cannot change continuously but only through abrupt …

Whenever a quantum system undergoes a cyclic evolution governed by a slow change of
parameters, it acquires a phase factor: the geometric phase. Its most common formulations …

Kinematic Approach to the Mixed State Geometric Phase in Nonunitary Evolution Page 1
Kinematic Approach to the Mixed State Geometric Phase in Nonunitary Evolution DM Tong,1 E …

We calculate analytically the geometric phases that the eigenvectors of a parametric
dissipative two-state system described by a complex symmetric Hamiltonian pick up when …

We investigate a nonadiabatic holonomic operation that enables us to entangle two fixed-
frequency superconducting transmon qubits attached to a common bus resonator. Two …

We present a general unified approach for the study of quantum thermal machines,
including both heat engines and refrigerators, operating under periodic adiabatic driving …

The geometric phase has been proposed as a candidate for noise resilient coherent
manipulation of fragile quantum systems. Since it is determined only by the path of the …

We experimentally investigate the effects of noise on the adiabatic and cyclic geometric
phase, also termed the Berry phase. By introducing artificial fluctuations in the path of the …

We investigate the geometric phase or Berry phase acquired by a spin half which is both
subject to a slowly varying magnetic field and weakly coupled to a dissipative environment …

The conventional unpolarized current injected into a quantum-coherent semiconductor ring
attached to two non-magnetic external leads can be modulated from perfect conductor to …