Nuclear Spin Memory - RESCUEPOKER.NETLIFY.APP

Nonvolatile nuclear spin memory enables sensor-unlimited.
Rechargeable 'spin battery' promising for... - Purdue University.
‪S. Ali Momenzadeh‬ - ‪Google Scholar‬.
Nuclear-spin-pattern control of electron-spin dynamics in a series of V.
Decoherence of nuclear spin quantum memory in a quantum dot | IEEE.
Computer Spin Memory: Physicists Read Data Stored in Atomic Nuclei.
Solid-state quantum memory using the 31P nuclear spin | Nature.
‪Carlos A. Meriles‬ - ‪Google Scholar‬.
A quantum spectrum analyzer enhanced by a nuclear spin memory.
Nuclear Spin Quantum Memory in Silicon Carbide - NASA/ADS.
Excited-State Spin Manipulation and Intrinsic Nuclear Spin Memory using.
Initialization and Readout of Nuclear Spins via a Negatively Charged.
Qubit Protection in Nuclear-Spin Quantum Dot Memories.
Decoherence of nuclear spin quantum memory in a quantum dot.

Nonvolatile nuclear spin memory enables sensor-unlimited.

Here we demonstrate the coherent transfer of a superposition state in an electron spin processing qubit to a nuclear spin memory qubit, using a combination of microwave and radiofrequency pulses applied to 31P donors in an isotopically pure 28Si crystal. The electron spin state can be stored in the nuclear spin on a timescale that is long. Nuclear-spin quantum memory poised to take the lead.... Optically programmable electron spin memory using semiconductor quantum dots. Kroutvar M, Ducommun Y, Heiss D, Bichler M, Schuh D, Abstreiter G, Finley JJ. Nature, 432(7013):81-84, 01 Nov 2004 Cited by: 115.

Rechargeable 'spin battery' promising for... - Purdue University.

We realize a two-qubit sensor designed for achieving high spectral resolution in quantum sensing experiments. Our sensor consists of an active "sensing qubit" and a long-lived "memory qubit", implemented by the electronic and the nitrogen-15 nuclear spins of a nitrogen-vacancy center in diamond, respectively. Using state storage times of up to 45 ms, we demonstrate spectroscopy of external ac.

‪S. Ali Momenzadeh‬ - ‪Google Scholar‬.

Researchers at Cambridge University in the UK have found a new way to detect a single quantum bit (qubit) hidden in a dense cloud of 100 000 qubits made from the nuclear spins of quantum dots. The feat, which involves laser light and a single electron that acts like a spin-herding "sheepdog", might aid the development of a quantum Internet.

Nuclear-spin-pattern control of electron-spin dynamics in a series of V.

To this end, we investigate the application of the intrinsic nitrogen nuclear spin (below called memory spin) for robust intermediate storage of classical metrology information. The nonvolatile classical memory furthermore allows decoupling of target spins from the sensor thus closing the decay channel. Detection of nearby individual nuclear spins, so far exclusively shown for few dilute nuclear spin bath host systems such as the nitrogen-vacancy center in diamond or the silicon vacancy in silicon carbide, remained an open challenge for rare earths in their host materials, which typically exhibit dense nuclear spin baths. We demonstrated an ensemble nuclear spin memory in phosphorous-doped silicon, which can be read out electrically and has a lifetime exceeding 100 seconds. The electronic spin information can be mapped onto and stored in the nuclear spin of the phosphorus donors, and the nuclear spins can then be repetitively read out electrically for time.

Decoherence of nuclear spin quantum memory in a quantum dot | IEEE.

Subatomic quantum memory in diamond demonstrated Date: June 28, 2011... "The result is an extremely fast transfer of the quantum information to the long-lived nuclear spin, which could further. (b) Number of sequence repetitions that are possible before the nuclear qubit Bloch vector length drops to 1 / e of its initial value, for qubits encoded in single nuclear spins (empty circles) and in two-spin states (filled circles) of different effective coupling strengths Δ ω. The four depicted data sets are taken for increasing repump.

Computer Spin Memory: Physicists Read Data Stored in Atomic Nuclei.

The state is left in the nuclear spin on a timescale that is long compared with the electron decoherence time, and is then coherently transferred back to the electron spin, thus demonstrating the 31 P nuclear spin as a solid-state quantum memory. The overall store-readout fidelity is about 90 per cent, with the loss attributed to imperfect.

Solid-state quantum memory using the 31P nuclear spin | Nature.

Here we demonstrate the coherent transfer of a superposition state in an electron spin ‘processing’ qubit to a nuclear spin ‘memory’ qubit, using a combination of microwave and radiofrequency pulses applied to 31 P donors in an isotopically pure 28 Si crystal Kane ; Tyryshkin et al.. The energy difference between nuclear spin states is small compared with the average kinetic energy of room temperature samples, and the +1/2 and _ 1/2 states are nearly equally populated. Indeed, in a field of 2.34 T the excess population of the lower energy state is only six nuclei per million. Although this is a very small difference , when. We further show that nuclear-spin polarization enables the use of well-known methods for initialization and long-time coherent storage of quantum states. The proposed nuclear-spin preparation protocol thus marks the first step towards an all-optically controlled integrated platform for quantum technology with TM defects in SiC. Publication.

‪Carlos A. Meriles‬ - ‪Google Scholar‬.

Detecting and imaging nuclear spins are of fundamental importance for spin-based quantum information processing in diamond. It is often realized by means of dynamical decoupling (DD) strategies, where a high-efficiency method for DD spectral analysis is required. The system utilizes phosphorus-31 spin donors in a silicon-28 crystal. The nuclear spin acts as a memory element that can faithfully store the full state of the electron spin for more than a.

A quantum spectrum analyzer enhanced by a nuclear spin memory.

Nonvolatile nuclear spin memory enables sensor-unlimited nanoscale spectroscopy of small spin clusters. M Pfender, N Aslam, H Sumiya, S Onoda, P Neumann, J Isoya,... Nature communications 8 (1), 1-12, 2017. 47: 2017: The system can't perform the operation now. Try again later.

Nuclear Spin Quantum Memory in Silicon Carbide - NASA/ADS.

Nuclear spin based memory and logic in quantum Hall semiconductor nanostructure for quantum computing applications was discussed. A hyperfine interaction based approach for setting, measuring, and. Recently, an ensemble of nuclear spins in a quantum dot have been proposed as a long-lived quantum memory. A quantum state of an electron spin in the dot can be faithfully transfered into nuclear spins through controlled hyperfine coupling. Here we. PROBLEM TO BE SOLVED: To realize a memory cell and an information processing circuit with higher performance. SOLUTION: A memory cell holds memory information by transferring an electronic spin 12 to a nuclear spin 13 in a channel 14 by using a spin transistor structure. COPYRIGHT: (C)2006,JPO&NCIPI.

Excited-State Spin Manipulation and Intrinsic Nuclear Spin Memory using.

For quantum memory applications,... The nuclear spin of ytterbium-171 acts as an intrinsic qubit that is insensitive to its environment, while its two active electrons give rise to optical transitions that allow for preparation of ultracold, almost fully filled arrays of atoms and fast, accurate manipulation of the qubits..

Initialization and Readout of Nuclear Spins via a Negatively Charged.

Thus, according our theory, the nuclear spin ensembles are the "mind-screen" with nuclear spins as its pixels, the neural membranes and proteins are the mind-screen and memory matrices, and the biologically available paramagnetic species such as O2 and NO are pixel-activating agents. Together, they form the neural substrates of consciousness.

Qubit Protection in Nuclear-Spin Quantum Dot Memories.

Nuclear spin quantum memory in silicon carbide Phys. Rev. Research Benedikt Tissot, Michael Trupke, Philipp Koller, Thomas Astner, and Guido Burkard Accepted 15 July 2022.... We further show that nuclear-spin polarization enables the use of well-known methods for initialization and long-time coherent storage of quantum states. The proposed. The electronic spin information can be mapped onto and stored in the nuclear spin of the phosphorus donors, and the nuclear spins can then be repetitively read out electrically for time periods that exceed the electron spin lifetime. We discuss how this memory can be used in conjunction with other silicon spintronic devices. PMID: 21164011.

Decoherence of nuclear spin quantum memory in a quantum dot.

This process reduces the chance of that europium's spin will flip down to 9 x 10 -5 each second. When the researchers stored a quantum state in the spin, it stayed there for about six hours (give.