Nearly 30 years ago, two-photon interference was observed, marking the beginning of a
new quantum era. Indeed, two-photon interference has no classical analogue, giving it a …

Interference, which refers to the phenomenon associated with the superposition of waves,
has played a crucial role in the advancement of physics and finds a wide range of …

A single photon can be coupled to collective charge oscillations at the interfaces between
metals and dielectrics forming a single surface plasmon. The electromagnetic near-fields …

Multipartite entanglement is one of the core concepts in quantum information science with
broad applications that span from condensed matter physics to quantum physics foundation …

Applications of quantum walks can depend on the number, exchange symmetry and
indistinguishability of the particles involved, and the underlying graph structures where they …

We report the experimental realization of high-fidelity photonic quantum gates for frequency-
encoded qubits and qutrits based on electro-optic modulation and Fourier-transform pulse …

Quantum theory is traditionally formulated using complex numbers. This imaginarity of
quantum theory has been quantified as a resource with applications in discrimination tasks …

We report on a universal method to measure the genuine indistinguishability of n photons—
a crucial parameter that determines the accuracy of optical quantum computing. Our …

Quantum physics experiments produce interesting phenomena such as interference or
entanglement, which are the core properties of numerous future quantum technologies. The …

Multi-particle interference is an essential ingredient for fundamental quantum mechanics
phenomena and for quantum information processing to provide a computational advantage …