Search results for «quantum state» 35 results

• Five ITMO University Scientists Awarded SRIE Scholarship

  …ectric field of a radiofrequency trap. In my research, I propose to cool the nanocrystal to temperatures close to zero, which coincides with its transition to a macroscopic quantum state. In this state, the nanocrystal starts to develop quantum properties. At the same time, it is too big to be an object of the microworld and too small for people to be able to see …

  18.06.2019

• Quantum Computing: Challenges, Prospects, and Current Developments

  …nt of elements in the system. At the same time, if we were to do it quantum-mechanically, the process would occur naturally. It should also be noted that, unlike classic bits, quantum states cannot be copied because an evolution operator is a unitary operator. In 1994, Peter Shor shown that quantum algorithms can find prime factors at an exponentially higher p…

  10.06.2019

• Quantum Physicist Oleksandr Kyriienko on the Future of Computing and Making a Career in Science

  … necessary to teach them to correct their mistakes. However, what we can do with quantum computers is simulate quantum systems. Scientists have already managed to preserve the quantum state of numerous atoms or photons; with just a hundred of such particles, called qubits, it is possible to perform some really complex calculations. I believe that in five years physic…

  05.03.2019

• ITMO University Enters Academic Ranking of World Universities for the First Time

  … Q Lab. In the research, the scientists described mathematical models that can be used to predict changes in public opinion. On-chip generation of high-dimensional entangled quantum states and their coherent control (Nature), co-authored by Roberto Morandotti, a professor at the Department of Laser Systems and Technologies. Its authors developed an optical chip cap…

  14.08.2018

• Physicists Discover Way to Control Transitions Between States of Matter

  …ape. In other words, despite being a collective state consisting of many particles, a soliton behaves like a single particle. At the same time, a Bose-Einstein condensate is a quantum state of matter where all particles, in our case polaritons, populate the ground state of the system with minimal energy. Usually, the ground state is extended through the entire area o…

  24.04.2018

• Physicists Propose New Mechanism of Radio Emission in Neutron Stars

• ITMO Physicists Use Radiofrequency Trap to “Freeze” Nanocrystals

  …n particles, constantly in motion and colliding with each other. However, if their kinetic energy were to be lowered, along with their speed and temperature, they will enter a quantum state. Such an effect can be achieved using optical cooling. Physicists from ITMO University have studied the optical cooling of mesoscopic articles using ytterbium ions. Ions of thi…

  28.12.2017

• Scientists Achieve Breakthrough in Polariton Laser Technology

  …chanical state according to the so-called Pauli Exclusion Principle, which states that two or more identical fermions (particles with half-integer spin) cannot occupy the same quantum state within a quantum system simultaneously. A polariton laser setup. Credit: bibo.kz In polariton lasers, this limitation is overcome in the following manner: electrons in suc…

  06.09.2017

• Created Chip Churns out High-Dimensional Entangled Photons

  …icated through processes like those used for integrated electronics. With an on-chip micro-ring resonator excited by a laser, photons are emitted in pairs that share a complex quantum state. The photons are constructed in a state featuring several superimposed frequency components: The photons have several colours simultaneously, and the colours of each photon in a p…

  29.06.2017

• Royal Society Member Maurice Skolnick: Why Making Science Understandable to Society Matters

  …le of managing a large number of qubits (in modern quantum computational schemes the maximum number of qubits working at the same time is approximately 16). The second is that quantum state is extremely fragile and is affected greatly by environmental factors. For that reason, we need to somehow isolate our qubits so that they remain unaffected. Scientists have alrea…

  11.05.2017