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We describe the fabrication and construction of a setup for creating lattices of magnetic microtraps for ultracold atoms on an atom chip. The lattice is defined by lithographic patterning of a permanent magnetic film. Patterned…

We present an optical method of storing random cryptographic keys, at high densities, within an electronically reconfigurable volume of polymer-dispersed liquid crystal (PDLC) film. We demonstrate how temporary application of a voltage…

Optics · Physics 2014-03-12 Roarke Horstmeyer , Sid Assawaworrarit , Changhuei Yang

Hyperfine-encoded qubits in alkali atoms have established themselves as robust platforms for quantum computing, while alkaline-earth-like elements expand the state manipulation toolbox through their rich spectrum of optical transitions and…

Quantum Physics · Physics 2025-08-19 Denis Mishin , Dmitry Tregubov , Nikolay Kolachevsky , Artem Golovizin

Quantum memory capable of storage and retrieval of flying photons on demand is crucial for developing quantum information technologies. However, the devices needed for long-distance links are quite different from those envisioned for local…

Quantum batteries harness non-classical resources, such as quantum coherence and entanglement, to surpass the performance limits of classical energy-storage devices. Here we realize a room-temperature quantum battery based on a collective…

Quantum computers are expected to outperform conventional computers for a range of important problems, from molecular simulation to search algorithms, once they can be scaled up to large numbers of quantum bits (qubits), typically millions.…

Solid state ionic conductors are good candidates for the next generation of nonvolatile computer memory elements. Such devices have to show reproducible resistance switching at reasonable voltage and current values even if scaled down to…

Mesoscale and Nanoscale Physics · Physics 2011-04-25 A. Geresdi , A. Halbritter , A. Gyenis , P. Makk , G. Mihály

A cluster composed of a few magnetic atoms assembled on the surface of a nonmagnetic substrate is one suitable realization of a bit for future concepts of spin-based information technology. The prevalent approach to achieve magnetic…

Although photons are robust, room-temperature carriers well suited to quantum machine learning, the absence of photon-photon interactions hinder the realization of memory functionalities that are critical for capturing long-range context.…

Quantum Physics · Physics 2026-02-02 Chaehyeon Lim , Hyungchul Park , Beomjoon Chae , Jeonghun Kwak , Soo-Yeon Lee , Namkyoo Park , Sunkyu Yu

Memristor is a promising building block for the next generation nonvolatile random access memory and bio-inspired computing systems. Organizing memristors into high density crossbar arrays, although challenging, is critical to meet the…

Mesoscale and Nanoscale Physics · Physics 2018-11-16 Shuang Pi , Can Li , Hao Jiang , Weiwei Xia , Huolin Xin , J. Joshua Yang , Qiangfei Xia

Scalability presents a central platform challenge for the components of current quantum network implementations that can be addressed by microfabrication techniques. We demonstrate a high-bandwidth optical memory using a warm alkali atom…

Quantum Physics · Physics 2023-12-29 Roberto Mottola , Gianni Buser , Philipp Treutlein

We report an experimental realization of an atomic vapor quantum memory for the photonic po- larization qubit. The performance of the quantum memory for the polarization qubit, realized with electromagnetically-induced transparency in two…

Quantum Physics · Physics 2015-05-18 Young-Wook Cho , Yoon-Ho Kim

Quantum information systems are on a path to vastly exceed the complexity of any classical device. The number of entangled qubits in quantum devices is rapidly increasing and the information required to fully describe these systems scales…

Quantum memories for light are essential building blocks for quantum repeaters and quantum networks. Integrated operations of quantum memories could enable scalable application with low-power consumption. However, the photonic quantum…

An efficient quantum storage is highly desired for quantum information processing. As indicated by certain applications, a universal quantum storage is required to have a storage efficiency above 50% to beat the no-cloning limit. Although…

Quantum Physics · Physics 2017-08-02 Jianfeng Li , Yunfei Wang , Shanchao Zhang , Junyu He , Aiqin Cheng , Hui Yan , Shi-Liang Zhu

Microwave quantum memory promises advanced capabilities for noisy intermediate-scale superconducting quantum computers. Existing approaches to microwave quantum memory lack complete combination of high efficiency, long storage time,…

Magnetic data storage is pervasive in the preservation of digital information and the rapid pace of computer development requires ever more capacity. Increasing the storage density for magnetic hard disk drives requires a reduced bit size,…

Materials Science · Physics 2013-10-24 R. F. L. Evans , R. W. Chantrell , U. Nowak , A. Lyberatos , H-J. Richter

We have developed a broadband scanning tunnelling microscope capable of conventional, low frequency (<10 kHz), microscopy as well spectroscopy and shot-noise detection at 1 MHz. After calibrating our AC circuit on a gold surface, we…

Mesoscale and Nanoscale Physics · Physics 2018-09-28 Freek Massee , Quan Dong , Antonella Cavanna , Yong Jin , Marco Aprili

Realizing a long coherence time quantum memory is a major challenge of current quantum technology. Here, we report a single \Yb ion-qubit memory with over one hour coherence time, an order of improvement compared to the state-of-the-art…

Quantum Physics · Physics 2021-02-02 Pengfei Wang , Chun-Yang Luan , Mu Qiao , Mark Um , Junhua Zhang , Ye Wang , Xiao Yuan , Mile Gu , Jingning Zhang , Kihwan Kim

An important step towards the successful development of network that allows the distribution of quantum information is the storage of light in a matter at the single-photon level. Encoding photons in high-dimensional photonic states can…

Quantum Physics · Physics 2015-06-15 Dong-Sheng Ding , Zhi-Yuan Zhou , Bao-Sen Shi , Guang-Can Guo