Sentences with phrase «coherence time of»

By extending the coherence time of electron states to over half a second, a team of scientists from Berkeley Lab, UC Berkeley, and Harvard University has vastly improved the performance of one of the most potent possible sensors of magnetic fields on the nanoscale — a diamond defect no bigger than a pair of atoms, called a nitrogen vacancy (NV) center.
Steger et al. (p. 1280) demonstrate that the nuclear spins of 31P impurities in an almost isotopically pure sample of 28Si can have a coherence time of as long as 192 seconds at a temperature of ∼ 1.7 K.

Not exact matches

They're doing it with a clear, narrow sense of purpose, a sublime customer experience, and the kind of coherence that seems all but impossible when a company gets old and big, and its founding idea lost to time and well - intended meddling.
It is our duty as Americans to know and appreciate the systems of belief — the mythic cosmologies, the scientific laws, the common - sense attitudes — that in times past have served to give coherence and purpose to our life together.
Newman's narrative — written in answer to Charles Kingsley's accusation of dishonesty — was compelling in its honesty and coherence, at times painfully so.
The usual assertions are (1) that this kind of religion is today on the defensive; (2) that the defensive posture is occasioned by the flourishing of «conservative churches» (although the alleged liberal enervation is also seen in more autonomous terms); (3) that the growth in religious conservatism and conservative churches is itself the result of widespread reaction against «secular humanist» values and against those who hold such values; (4) that our society as a whole has been experiencing a breakdown in moral consensus, a loss of moral coherence somehow connected with a decline in oldline Protestant dominance; and (5) that some or all of these happenings have been quite sudden, so that the early 1960s can be taken as a kind of benchmark — as a time before the fall.
Whitehead protests that while one may choose to use such a notion as a helpful abstraction, one can treat such absolute time as an actuality equal to all other actualities only at the expense of coherence.
But if you have the Story firmly in your head, with a good grasp of various biblical ways of telling it, what you teach by opportunity will, over time, exhibit a visible coherence that it wouldn't otherwise have.
So that, Time acting on Space and incorporating it within itself, the two together constitute a single progression in which Space represents a momentary section of the flow which is endowed with depth and coherence by Time.
Families can be understood in how they handle universal concerns of control, power and intimacy — that is how well they maintain coherence and structure, have a sense of who is in charge of what and at what time, and provide members with feelings of connection trust and support.
Whitehead himself, unlike Hartshorne and Ogden, repudiates the deductive method and the demonstrative claims of classical rationalism and, rather, attempts to arrive at a metaphysical system that will bring a consistent meaning and coherence to the critical ideas, mostly scientific, of his own time and world.
«8 At the same time, religion is itself always interested in the universal, because the generalities of philosophy give some coherence to the particularities of emotion and feeling that belong to the data of religion.
Then again, what does it say about the coherence of those intentions when, by Hamburger's own account, at least three of our first seven presidents, including an influential drafter of the Constitution and the author of the Declaration of Independence, seem to have held separationist views outside the mainstream of their time?
Sir Michael Scholar, the chairman of the UK Statistics Authority at the time, responded to Mr Raynsford's letter in January: «Looking at statistics on housing, house building and house prices more generally, the Statistics Authority has been concerned for some time that there is a lack of coherence and clarity in their public presentation.»
Using first - principles quantum theory, the JQI team has explored the time evolution of a Ps BEC containing various mixtures of spin - 0 and spin - 1 Ps atoms, and has found that there is a critical density of Ps, above which collision processes quickly destroy the internal coherence of the gas.
In diamond at room temperature, Maurer et al. (p. 1283) show that a spin - based qubit system comprised of an isotopic impurity (13C) in the vicinity of a color defect (a nitrogen - vacancy center) could be manipulated to have a coherence time exceeding one second.
The number of research structures, agencies, and partnerships has reached an all - time high; the complexity, lack of coherence, and redundancies that result are a burden on French researchers and make the system opaque to the private sector and foreigners.
Compared with Ye's previous 1 - D clocks, the new 3 - D quantum gas clock can reach the same level of precision more than 20 times faster due to the large number of atoms and longer coherence times.
«Also, we could reach the ideal condition of running the clock with its full coherence time, which refers to how long a series of ticks can remain stable.
The study enrolled 100 patients with de novo coronary lesions 2.25 - 3.50 mm in diameter and length ≤ 27 mm in two 50 - patient cohorts for angiographic, intravascular ultrasound, and clinical assessment at nine or 24 months, with optical coherence tomography (OCT) performed in a subset of 30 patients at multiple time periods.
Electron spins in silicon quantum dots are attractive systems for quantum computing owing to their long coherence times and the promise of rapid scaling of the number of dots in a system using semiconductor fabrication techniques.
Complementary vision metrics will include automated visual fields, optical coherence tomography, and color and contrast sensitivity, in addition to quality of life scales, bio ‑ dissemination and the time course of immune response.
Since 2012, when the first qubits that relied on electron spins were reported, the introduction of isotopically purified 28Si has led to significant enhancement of the spin coherence time.
The 29Si isotope is present at 4.67 percent in natural silicon and is the only stable isotope of silicon that carries a nuclear spin limiting the qubit coherence time.
The Sagittarius Dwarf is believed to already have orbited the Milky Way about 10 times in the last billion years or so, and it still appears to have coherence as an elongated ellipse despite being torn apart by enormous tidal forces as a result of the interaction.
Functional brain connectivity can be estimated in a variety of ways, for example through computing cross-correlations in the time or frequency domain, mutual information or spectral coherence.
With improvements of coherence times by over 5 order of magnitude, it is now possible to implement simple quantum algorithms with these circuits.
To supplement We - Consent, the Institute for the Study of Coherence and Engagement also developed an app called I've - Been - Violated, which will be renamed Guardrail some time this year.
With its crowded field of producers (including Rashida Jones), Claws has a difficult time with coherence, feeling like a half - hour show that learned way too late that it was going to be a one - hour show.
Without the philosophical message, what's left of Pulse is much like the humans in the movie after their essence is extracted — it's a lifeless shell of its former self that loses coherence and reason as time goes on before finally disintegrating into nothingness.
Coherence is a new entrant to the genre from first time feature director James Ward Byrkit, a protege of Gore Verbinski.
Amy Adams — Arrival Consider the degree of difficulty that Adams makes look easy: the believability and coherence of Arrival «s time - shifting twist (which only plays better on a second viewing).
This is not a difficult story to tell, no matter how many times the screenplay (based on a «controversial» book by Ranulph Fiennes — controversial due to wide speculation that it was not, as the movie states, based on a true story) zigzag from country to country, but in the hands of first - time director Gary McKendry (who wrote the script with Matt Sherring), Killer Elite struggles to accomplish even basic coherence.
Other times, the student may submit a draft of the essay that the freelancer perfects for grammar, style, and coherence.
More can also be done to align working conditions of preschool and primary school teachers; increase flexibility and responsiveness to individual communities, families, and children while at the same time strengthening coherence of services; overcome structural and informational roadblocks to co-operation and continuity; and to better facilitate collaboration among staff, managers, parents, and the community based on reciprocal communication, inclusivity, mutual trust, and respect.
As a long - time member of the Public Education Leadership Project, a joint initiative between HBS and HGSE, Higgins co-authored a book with her colleagues on managing central office - school relationships called, Achieving Coherence in District Improvement; this book is based upon their work with large urban districts over a ten - year time period.
District leaders need to establish clear expectations across multiple dimensions of improvement activity as the bases for increasing coherence, coordination, and synergy in the effectiveness of district improvement efforts over time.
One of the signature challenges of leadership in schools is trying to create that coherence especially in schools that have been around for a long time with a really strong tradition of what we might call radical teacher autonomy: letting every teacher go to their own classroom, go to their own space, and teach and improve however they want.
Three areas of interest emerge from that research: teacher knowledge, skills and dispositions; professional community (schools as a collective enterprise); and program coherence (clear learning goals sustained over time).
This provided clarity and coherence regarding what are, at times, seen as competing initiatives, yet are actually integral pieces of the district's larger goal to become Future Ready.
For starters, leaders of these schools focus relentlessly on improving the quality, consistency, and coherence of instruction, and have the time and resources to make real improvement possible.
In contrast to excessive numbers of unrelated, unsustained improvement initiatives in a school, instructional coherence contributes to learning by connecting students» experiences and building on them over time.
In these settings, teachers have retained — or, in some cases, have discovered for the first time — the essential frameworks of the disciplines and the coherence, understanding, purpose, and joy in learning.
Over the last two years, as I have tried to tease out the truths from the untruths in that series of events that seeped out through Elizabeth's death, like lava moving upwards and outwards through salt water from a tear in the seabed, I have had to be you several times, Cameron Brown, in order to claw myself towards some kind of coherence.
What makes Fiasco stand out from the crowd of recently published books about the current situation in Iraq is the comprehensiveness and coherence of Ricks's reporting, and the dozens of military sources he cites (many going on the record for the first time) backed up by the thousands of pages of internal documents - Ricks says he read over 30,000 pages of documents, including diaries, unit logs, official briefings, email correspondence and US military documents.
What makes Fiasco stand out from the crowd of recently published books about the current situation is the comprehensiveness and coherence of Ricks's reporting, and the dozens of military sources he cites (many going on the record for the first time) backed up by the thousands of pages of internal documents - Ricks says he read over 30,000 pages of documents, including diaries, unit logs, official briefings, email correspondence and US military documents.
Luckily, I had registered ahead of time for a panel that went almost unnoticed thanks to poor programming; by Saturday morning, most of the trade visitors had either left or were too exhausted to reflect on the state of the industry with any wit or coherence.
Optical coherence tomography (OCT) is an emerging diagnostic imaging tool that uses light waves to generate real - time, high - resolution images of tissue at a microscopic level.
It also saps the coherence of the game's fiction: a colossal Stoneguard Defender shouldn't move three times as fast as your nimble little archer, even if a lot of his friends are dead.
At this time, his work was also being recognized in Europe and Mexico; he was included in Documenta IX in 1992 and his solo show Original Re-Runs (aka, A Certain Lack of Coherence) traveled in Europe throughout 1993 and 1994.
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