In the realm of electronics, the manipulation of electronic currents and signals has traditionally been achieved through the application of electrical voltage. However, with the emergence of spintronics, a new avenue has been explored in which the magnetic moment of electrons, known as spin, is utilized to control the flow of current and signals. Spintronics
Physics
Superradiance is a fascinating phenomenon in quantum optics that has been a topic of interest for theoretical physicist Farokh Mivehvar. In simple terms, it can be visualized as atoms acting like tiny antennae that emit light more efficiently when they are closely located to each other within a quantum cavity. This synchronization of atomic antennae
University of Pennsylvania engineers have made a groundbreaking advancement in computer processing with the development of a new chip that utilizes light waves instead of electricity to perform complex mathematical calculations crucial to training artificial intelligence (AI). This silicon-photonic (SiPh) chip has immense potential to revolutionize the speed and energy efficiency of computers, surpassing the
Gravastars and their hypothetical celestial object, nestars, have recently caught the attention of theoretical physicists as potential alternatives to black holes. These objects challenge the conventional understanding of the interior of black holes and offer new insights into the nature of gravity and the universe. In this article, we will explore the concept of gravastars,
In the ever-evolving field of microscopy, scientists have been continuously striving to push the boundaries of our understanding of the microscopic world. Recent years have witnessed remarkable strides in both hardware and algorithms, allowing us to explore the infinitesimal wonders of life with unprecedented clarity. However, the development of three-dimensional structured illumination microscopy (3DSIM) has
The field of quantum mechanics has long been captivated by the idea of observing and controlling quantum phenomena at room temperature. However, achieving this feat on a large scale has proven to be a persistent challenge. Traditionally, quantum observations have been limited to environments near absolute zero, where quantum effects are more readily detected. The
In the realm of artificial intelligence (AI), the processing power required to analyze images and identify objects has always been a challenge. Traditional methods often struggle with high energy consumption, slow processing, and limited bandwidth. However, a breakthrough invention by Penn State electrical engineering researchers offers a promising solution. By leveraging the concept of metasurfaces,
The future of electronics is rapidly evolving and will soon differ significantly from conventional electronics. The storage and transmission of information in future quantum electronics will be based on qubits instead of traditional binary digits. However, one of the key challenges in quantum electronics has been the limited ability to transmit quantum information over long
Defects in semiconducting materials like diamonds have long been regarded as a nuisance, disrupting the perfect arrangement of atoms. However, scientists have recently discovered that these defects can actually be harnessed as quantum sensors. This is because some defects contain electrons with a spin, or angular momentum, which can store and process information. In a
Quantum physicists and engineers have been working tirelessly over the past few decades to develop new and reliable quantum communication systems. These systems have the potential to serve as a testbed for evaluating and advancing communication protocols. Recently, researchers at the University of Chicago introduced a groundbreaking quantum communication testbed with remote superconducting nodes. In
Quantum information technology heavily relies on the use of single photons as qubits. The accurate determination of the number of photons is crucial for the success of various quantum systems such as quantum computation, quantum communication, and quantum metrology. Photon-number-resolving detectors (PNRDs) play a vital role in achieving this accuracy. These detectors have two main
In a ground-breaking achievement, Cornell quantum researchers have successfully detected a rare and elusive phase of matter known as the Bragg glass phase. This remarkable discovery addresses a long-standing question regarding the existence of this partially ordered state in real materials. The research paper, titled “Bragg glass signatures in PdxErTe3 with X-ray diffraction Temperature Clustering