Quantum information is vulnerable to environmental noise and experimental imperfections,
hindering the reliability of practical quantum information processors. Therefore, quantum …

Logical qubit encoding and quantum error correction (QEC) protocols have been
experimentally demonstrated in various physical systems with multiple physical qubits …

Geometric phases are noise resilient, and thus provide a robust way towards high-fidelity
quantum manipulation. Here we experimentally demonstrate arbitrary nonadiabatic …

Bohr's complementarity principle has been challenged by quantum delayed-choice
experiments wherein quantum systems are claimed to behave neither as wave nor as a …

To realize fault-tolerant quantum computing, it is necessary to store quantum information in
logical qubits with error correction functions, realized by distributing a logical state among …

Wave–particle duality epitomizes the counterintuitive character of quantum physics. A
striking illustration is the quantum delayed-choice experiment, which is based on Wheeler's …

A cat state is formed as the steady-state solution for the signal mode of an ideal degenerate
parametric oscillator, in the limit of negligible single-photon signal loss. In the presence of …

Using the deterministic, on-demand generation of two entangled phonons, we demonstrate
a quantum eraser protocol in a phononic interferometer where the which-path information …

We present and analyze a proposal for a macroscopic quantum delayed-choice experiment
with massive mechanical resonators. In our approach, the electronic spin of a single …

We propose and experimentally demonstrate a new method to generate arbitrary Fock state
superpositions in a superconducting quantum circuit, where a qubit is dispersively coupled …