Geometric and holonomic quantum computation utilizes intrinsic geometric properties of
quantum-mechanical state spaces to realize quantum logic gates. Since both geometric …

Quantum computers, which process information encoded in quantum mechanical systems,
hold the potential to solve some of the hardest computational problems. A substantial …

We present a novel continuous dynamical decoupling scheme for the construction of a
robust qubit in a three-level system. By means of a clock transition adjustment, we first show …

A quantitative assessment of the progress of small prototype quantum processors towards
fault-tolerant quantum computation is a problem of current interest in experimental and …

The maximal storage duration is an important benchmark for memories. In quantized media,
storage times are typically limited due to stochastic interactions with the environment. Also …

Decoherence is one of the most important obstacles that must be overcome in quantum
information processing. It depends on the qubit-environment coupling strength, but also on …

Dynamical decoupling (DD) is a popular technique for protecting qubits from the
environment. However, unless special care is taken, experimental errors in the control …

This chapter provides an introduction to the theory of decoherence‐free subspaces (DFSs),
noiseless subsystems (NSs), and dynamical decoupling (DD)–the key tools for decoherence …

Dynamic nuclear polarization (DNP) is an important technique that uses polarization transfer
from electron to nuclear spins to achieve nuclear hyperpolarization. Combining efficient …

Over the past decade we have seen an explosion of demonstrations of quantum coherence
in atomic, optical and condensed matter systems. These developments have placed a new …