According to scientific legend, quantum mechanics was born on the island of Helgoland in 1925. A hundred years later, ...

The next generation of computers could reshape science, security, and global power. It will not be about what’s possible with bits, but about what we can achieve with qubits.

Grete Hermann: 30 years ahead of John Bell (Courtesy: iStock/Chayanan) According to Grete Hermann, John von Neumann’s 1932 proof that quantum mechanics doesn’t need hidden variables “stands or falls” ...

Integrated nonlinear optical devices for the generation of twin photon beams are expected to be a key element for the development of quantum information techniques. This paper presents a quantum ...

The Heisenberg Uncertainty principle states that, it is not possible to measure the quantum state of any system without distributing that system. The principle of photon polarization states that, an ...

Letter Published: 02 January 1932 Experimental Proof of the Spin of the Photon C. V. RAMAN & S. BHAGAVANTAM Nature 129, 22–23 (1932) Cite this article ...

Appropriate non-classical photon states, constructed from the two-polarization-mode Fock states, can attain Heisenberg-limited sensitivity in polarimetric measurements. We show that these states can ...

But bolometric energy-sensing is a fundamentally different kind of measurement—serving as a means of evading Heisenberg’s infamous rule. Since a bolometer measures power, or photon number, it is not ...