Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

Quantum computers [1–4] are explicitly quantum mechanical systems that use phenomena
such as superposition and entanglement to perform computational tasks more efficiently …

No-cloning theorem is fundamental for quantum mechanics and for quantum information
science that states an unknown quantum state cannot be cloned perfectly. However, we can …

The three-spin chain with a Heisenberg XY interaction is simulated in a three-qubit nuclear
magnetic resonance quantum computer. The evolution caused by the XY interaction is …

Paramagnetic endohedral fullerenes are ideal candidates for quantum information
processing and high-density data storage due to their protected spins with particularly high …

While exact cloning of an unknown quantum state is prohibited by the linearity of quantum
mechanics, approximate cloning is possible and has been used, eg, to derive limits on the …

Geometric phases, arising from cyclic evolutions in a curved parameter space, appear in a
wealth of physical settings. Recently, and largely motivated by the need of an experimentally …

The nature of light, extending from the optical to the x-ray regime, is reviewed from a
diffraction point of view by comparing field-based statistical optics and photon-based …

Quantum cloning is a fundamental protocol of quantum information theory. Perfect universal
quantum cloning is prohibited by the laws of quantum mechanics, only imperfect copies …

The possibility of cloning ad-dimensional quantum system without an ancilla is explored,
extending on the economical phase-covariant cloning machine for qubits found in Phys …