Phys.org October 13, 2022 An international team of researchers (UK, Italy) developed a molecular model system with several separate qubit units, which can be spectroscopically detected and the states of which can be switched by interacting with one another. They used pulsed Electron Paramagnetic Resonance (EPR) techniques to characterize and separately address the individual electron spin qubits; CuII, Cr7Ni ring and a nitroxide, and to determine the strength of the inter-qubit dipolar interaction. Orientation selective Relaxation-Induced Dipolar Modulation Enhancement (os-RIDME) detecting across the CuII spectrum revealed a strongly correlated CuII-Cr7Ni ring relationship; detecting on the nitroxide resonance measured both the […]
Tag Archives: Molecular computing
A molecular approach to quantum computing
Science Daily September 2, 2020 Researchers in the US (Caltech) applied the concept of error correction to rotating molecules in superposition. If the orientation or angular momentum of the molecule shifts by a small amount, those shifts can be simultaneously corrected. They constructed quantum error-correcting codes that embed a finite-dimensional code space in the infinite-dimensional Hilbert space of rotational states of a rigid body. They protect against both drift in the body’s orientation and small changes in its angular momentum. Hence, they may be well suited for robust storage and coherent processing of quantum information. They have described codes and […]