Quantum Computing

Light the Way to Quantum Computing.

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Since the 1980s, researchers have been chasing after the quantum computer. Such a computer, they believe, could transform the task of information processing by handling data in novel, unprecedented ways. Whereas current computers can only process bits that occupy one of two states (0 or 1), one promising implementation of the quantum computer would rely on arrays of atoms in quantum states, called qubits.
Thanks to the strange nature of the quantum realm, qubits can occupy both the 0 and 1 states simultaneously and can also be entangled with, and thus closely influenced by, one another. Researchers are just beginning to explore the potential processing power that these qubits could unlock.


Yet, the quantum computer has always remained just out of reach because of various fabrication difficulties. For example, researchers are able to manipulate only a small number of qubits — on a scale of tens — as opposed to the required thousands or millions.

“Across all the groups in the world that are working on quantum computing, no one has developed a way to control a very large number of qubits such that you can use them to perform an actual computation of interest,” said Jeremy Sage, a member of the technical staff in Lincoln Laboratory’s Quantum Information and Integrated Nanosystems Group. “We can’t yet do anything that is both practical and better than what a classical computer can do.”


Sage and John Chiaverini, a senior staff member in Sage’s group, lead a team that is pursuing scalability by merging photonic integrated circuits (PICs) with a quantum computing method based on charged atoms, or ions, trapped above the surface of a chip. In 2016, in collaboration with MIT, the team demonstrated that PICs could be used to effectively manipulate the quantum states of ions by performing quantum gates. A quantum gate is the quantum version of a logic gate, which processes information by producing output bits (or qubits) based on inputs and a simple set of logical rules. The Laboratory team’s most recent milestone represents a breakthrough in the precise delivery of light from lasers to the trapped ions by significantly extending the range of wavelengths over which the PICs operate.


“We use lasers to rip off electrons, cool the ions down, and perform quantum gates,” Sage said. These changes to the ions that the lasers bring about are what would power the quantum computer. The ions that the team chose to use for their research are strontium and calcium, which react to specific wavelengths of light. “It turns out we need about 12 different laser colors that range from the near-ultraviolet to the near-infrared,” Sage added.

At the moment, most researchers shine lasers through windows in vacuum chambers to

strike the ions, but this approach leaves a lot of room for error. While it’s possible to hit a few individual ions precisely, scaling to the millions introduces a high probability of hitting the wrong one.


“What we’re trying to do is deliver the light in a different way by integrating the required light-delivery optics into the chip itself,” Sage explained.


“Our PICs distribute the light from several input lasers to an array of trapped ions,” said Paul Juodawlkis, assistant leader of the Quantum Information and Integrated Nanosystems Group, who leads the integrated photonics projects at the Laboratory. “At each trapped-ion site, we use devices called vertical grating couplers to redirect the laser light out of the PIC and focus it on an individual trapped ion.”

The vertical grating couplers are periodic structures that shoot light up and out of the chip, directly aiming it at and focusing it on the trapped ion, ensuring accuracy and mitigating the risk of hitting nearby ions.
The vertical grating couplers are periodic structures that shoot light up and out of the chip, directly aiming it at and focusing it on the trapped ion, ensuring accuracy and mitigating the risk of hitting nearby ions.


Instead of shining lasers through windows, the Laboratory team uses an optical input that is plugged into the chip. The input sends the lasers through the chip to the ion of interest via paths called waveguides that are specific to each wavelength of light. When the light has reached the area on the chip that correlates with the targeted ion, it emerges through the vertical grating coupler out of the chip and triggers the ion to change states.

The PIC technology needed to create this type of chip is already used extensively in the world of tele- and data communications. Yet these PICs are traditionally made of silicon, which absorbs the wavelengths of light required to manipulate the ions rather than allowing them to propagate through the chip.


Therefore, the research team developed alternate materials: silicon nitride and alumina. This year, they demonstrated a low propagation loss, meaning a small diminishment of the light as it is sent through the chip to meet an ion, while delivering light across a wide spectrum, from the near ultraviolet to the near infrared. The team’s work is the first-ever successful demonstration of a low-loss integrated photonics platform with light delivery over such a spectrum.

“We also demonstrated that the [vertical] gratings do indeed work,” said Suraj Bramhavar, another researcher on the team. “We are now working on ways to make these gratings more efficient so that more of the light we inject into the waveguide will reach the ion.”


“I think the ion-trapping field outside of the Laboratory is paying very close attention to what we’re doing here,” Sage said. “We are one of the leaders in this effort.”The Laboratory is uniquely capable of realizing this chip because of its expertise in integrated photonics and quantum computing, and the fabrication capabilities of its Microelectronics Laboratory.


The research team will continue working on refining the chip design and fabrication process.”There are a number of challenges that need to be addressed before a large-scale, useful quantumcomputer can be realized,” Juodawlkis said. “Estimates of when useful quantum computing will be available range from 10 to 20 years. An increasing number of groups around the world are working to solve the scientific and engineering challenges, and good progress is being made.”(July 9, 2018,/, Anne McGovern | Technical Communications Group)

[STUARTCOAXICOM.COM] –  Coaxicom, a recognized aerospace and defense supplier with customers that include NASA, and United States Navy offers innovative design and world-class manufacturing capabilities. Solely owned and entirely based in Florida, Coaxicom, inventories thousands of standard RF/Microwave components for quick assembly and immediate shipment.

And while delivery speed is important, quality is the driving force.

Coaxicom components go through quality control review not just at the end but throughout the manufacturing process. This multi-tier inspection check maintains  consistent quality and product integrity that meets Military specifications MIL-PRF 39012, MIL-A 55339, MIL-C-83517, and MIL-STD-348 as applicable. Learn more about our RF Connectors.

 Connectors (all-series), Cable Assemblies, Phase AdjustersAdaptersTerminationsAttenuators, Dust Caps, Pins, Precision Torque Wrenches.

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17-year-old is preparing to be the first human on Mars.

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WASHINGTON (WJLA) — Alyssa Carson fell in love with space when she was only 3 years old and now is making it her life’s work to be the first human to land on Mars.

The 17-year-old is training to be on the first NASA trip to the Red Planet, where she says she’ll spend two to three years.
It started with “The Backyardigans” — a TV show that features an episode called “Mission to Mars.” After watching the episode, the rest of her life would be focused on all things space.

Carson began her journey at NASA’s United State Space Camp in Huntsville, Alabama.

“My dad had to go through everything with me. It was the best weekend of my life. I learned everything about space that I wanted to know. I kept going every year,” Carson said.

As of now, the mission to Mars is scheduled for 2033. They will travel in the Space Launch System (SLS) rocket and use the Orion spacecraft.

“With the current technology, it will take 6 months to get to Mars. We will stay there for over a year because we have to wait for the planets to align together and then it is a nine-month trip back,” Carson said. “It’s a two- to three-year mission in total.”

Carson says she wants to make new discoveries and learn more about Mars. She says she will be looking at the water samples, seeing if they can find any signs of life and uncover the history.
“To understand what’s going on there and what resources we can find,” Carson said. “It’s something that I think is super important for us to accomplish.”

Until the mission to Mars, she will continue preparing and building her resume. Right now, she’s working on getting her pilot’s license, underwater survival training, scuba diving certification and more.

“Follow your dream. When I was three saying I wanted to go to Mars, it was absolutely insane. But now, I am out here doing actual training,” she said. (content credit: by Caroline Patrickis/ABC7,, July 9, 2018)

(STUARTCOAXICOM.COM) –  Coaxicom, a recognized aerospace and defense supplier with customers that include NASA, and United States Navy offers innovative design and world-class manufacturing capabilities. Solely owned and based in Florida, Coaxicom inventories thousands of standard RF/Microwave components for quick assembly and immediate shipment.

And while delivery speed is important, quality is the driving force.

Coaxicom components go through quality control review not just at the end but throughout the manufacturing process. This multi-tier inspection check maintains  consistent quality and product integrity that meets Military specifications MIL-PRF 39012, MIL-A 55339, MIL-C-83517, and MIL-STD-348 as applicable. Learn more about our RF Connectors.

 Connectors (all-series), Cable Assemblies, Phase AdjustersAdaptersTerminationsAttenuators, Dust Caps, Pins, Precision Torque Wrenches.

See our quality for yourself, complete the information below.

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Give Your RF Connectors Some TLC!

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If you’re anything like me, I’m certain you can recall your mom’s ear-splittingly shriek at one point or another … “this is why we can’t have nice things…you need to be more careful”.

The simple fact is…it’s the truth… things do last longer when we take care of them. Todaywe may no longer leave our new bikes out in the rain, but what about how we treat the RF/Microwave Components we use everyday on the job!

Below are some helpful hints to treat your Connectors well so they’ll have a long, productive and reliable life.

1. Don’t use pliers on a “stuck” connector for any reason. There are wrenches for every size adapter, even SMAs bullets. If you can’t fit a wrench to your stuck connector, see below.

2. Learn how to clean connectors with alcohol and cotton swabs. Cleaning the threads is good practice, but stay away from cleaning the center conductor of an air dielectric connectors such as 3.5mm, 2.9mm and 2.4mm.

3. Learn how to gage connectors to determine if they are out of spec. One bad connector can damage many.

4. Don’t use higher frequency connector than you need. Save the 2.9mm and 2.4mm parts for millimeter-wave measurements.

5. Never use any part of a calibration kit as an adapter. Ever. If you need a special adapter, buy it!

6. Use a torque wrench. For most connectors with 5/16 inch hex nuts, use 6-8 inch-pounds. It’s OK to use less torque, but not more.

7. Don’t forget, righty-tighty, lefty-losey! The total damage done by people turning stuff in the wrong direction is second only to damage caused by klutzes who “thumb” hybrids.

8. Remember, you are not tightening lug nuts. The hardware you hold in your hands could very well be worth more than your automobile. So be gentle with it.

9. When you are tightening or loosening a connector, try not to spin the mating surfaces against each other. You should only be turning the threaded sleeve. Turning the mating surfaces means you are wearing out the connector for no reason!

(content credit: 2015, Prof. Luca Perregrini Dept. of Electrical, Computer and Biomedical Engineering, University of Pavia,

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Steps to Avoid the Work Stress of a Hump Day Holiday.

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July 4th this year is this Wednesday. As in smack dab in the middle of the week.

And some of us lucky ones may take a few extra days to extend our holiday fun.

But the reality is… things still must get done. And nothing taints “time off” more than the stress of returning to a pile of  urgent “to-do’s” and the dread of being behind schedule.

So what’s the answer? 

Below are a few easy steps to ensure your mind is on family and fireworks… instead of  work!

Email a RFQ’s to Dawn at today. Your quote will be waiting at your in-box when you return.

Engineering questions?  Visit the Coaxicom‘s engineering section for helpful tips! With a few quick clicks you might just find the answers…and wahla… problem solved.

Starting a new project and not sure if you need a  Connector or an Adapter…send your questions to

Use our instant Cable Assembly Builder Tool  for standard, custom, and high-performance cable assemblies.

Know exactly what you need? Perfect. Simply go to… type in the Coaxicom part number or use the Cross Reference Tool, add to the cart, and your order will arrive before you know it!


Sure mid-week holidays may present some challenges but with Coaxicom RF/Microwave Components, you can now concentrate on fun in the sun rather than proposals, project and postponements!

Have a great 4th of July. Happy Birthday to the U.S.A.

Complete the information below for a quick quote.



Problem: Hubble Space Telescope Can’t See.

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Today, June 27, 1990, 28-years ago, Dr. Edward J. Weiler, the chief scientist with the Hubble Space Telescope program, told reporters that the newly launched $1.5 billion observatory’s supposedly flawless 94.5-inch primary mirror had been ground to the wrong shape and was unable to bring starlight to a crisp focus…preventing the instrument from achieving optimum images in space!

Hubble’s view of the M100 galactic nucleus before (left) and after (right) repairs to correct the telescope’s deformed mirror. Photo Credit: NASA/STScI/JPL).

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One of the Most Versatile RF Connectors Ever Made.

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In high demand since it was first developed in the 60’s, this SMA Connector was initially used for hand-held radios and antennas. However today, the demand has skyrocketed with industries such as aerospace, defense, and telecommunications requiring SMA Connectors for most of their current applications, and many future research projects.

Some of the SMA’s key attributes that appeal to engineers is its size. Compared to its predecessors such as the BNC and N types, the SMA is relatively small. This is a huge benefit when working in tight, confined spaces, a particular concern for network engineering.

The heightened popularity also stems from its reliability. While small, SMA’s are robust against vibration, repeated insertions, and  harsh environments (when a proper torque wrench is used). Also available in a wide range of coaxial cable types.

A U.S. Manufacturer, Coaxicom has thousands of Connectors in stock. From TNC, CMS, and SSMB connectors to the heavily utilized, ever dependable SMA.

SMA Straight Female 4 Hole Flange Receptacle-Probe (Passivated)

Part Number: 3204-9

  • SMA-series
  • 50Ω DC-18 GHz
  • Female (Jack)
  • All Stainless Steel Construction
  • Manufactured per Mil-PRF-39012
  • Also available in brass for commercial options
  • Ask about out Non-Magnetic series
  • Made in the USA

Want a quote?  Email: or call 866-COAXICOM (262-9426).

See more here  For special offers, engineering tips, and FREE updated catalog, complete the fields below.

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10 Million Patents: A Celebration of American Innovation!

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On June 19, the U.S. Patent and Trademark Office will issue patent number 10 million—a remarkable achievement for the United States of America and our agency. More than just a number, this patent represents one of ten million steps on a continuum of human accomplishment launched when our Founding Fathers provided for intellectual property protection in Article 1, Section 8, Clause 8 of our Constitution.

Appropriately, patent number 10 million will be the first issued with a new patent cover design, which we unveiled in March at South by Southwest in Austin, Texas. It was created by a team of USPTO graphic designers including Rick Heddleston, Theresa Verigan, and led by Jeff Isaacs. Like the numerical milestone, the new cover design celebrates both how far we have come and the new frontiers we have yet to explore.

Each patent blooms from the creativity, brilliance, and determination that an inventor or a team of inventors have invested in order to bring an idea to fruition. In fulfilling our Constitutional mandate “to promote the progress of science and useful arts,” our nation has become the world’s leader in innovation. Our strong IP system has delivered 10 million patents’ worth of innovation representing trillions of dollars added to the global economy.

Patent examiners and the entire USPTO have played a vital role in every single one of these patents. So, in marking this historic occasion, we also honor and salute the public service delivered by all employees of the U.S. Patent and Trademark Office now, and those of its predecessor agencies throughout our history. The work of this remarkable agency has been and continues to be critically important.

The future—the next ten million patents and beyond—is even more exciting. We stand on the cusp of truly historic times for science and technology. The USPTO is committed to encouraging and supporting future generations of inventors and entrepreneurs in communities across the nation who will lead us to ever higher achievements and development.

At this time in our nation’s history, we are proud to celebrate American innovation, the men and women who stand behind it, and the American intellectual property system which has helped fuel it all.

( by Andrei Iancu. June 14, 2018,  The following is a cross-post from the USPTO Director’s Blog).  Continue reading

Happy Birthday U.S. Army!

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Coaxicom Salutes the United States Army for its Service, Courage and Honor.

The Army is celebrating its 243rd birthday on June 14, commemorating the date in 1775 when the Continental Congress authorized enlistment of expert riflemen to serve the United Colonies for one year.

The new forces were comprised of 22,000 militiamen who had already gathered outside of Boston, plus 5,000 more in New York. On June 15, 1775, the Continental Congress named George Washington of Virginia as commander-in-chief and voted to raise 10 more companies of riflemen from Pennsylvania, Maryland and Virginia.

Washington officially took command at Boston on July 3, 1775. The original Congressional appropriation to fund the new Army was $2 million. It took another year – July 4, 1776 to be exact – for the Continental Army and the militia to become known collectively as the Army of the United States, instead of the Army of the United Colonies.

Today, the Army has about 467,000 active duty soldiers, with another 343,000 in the U.S. Army National Guard and 206,000 in the Army Reserves.

The Army’s birthday is marked with celebrations, military balls and traditional cake cutting ceremonies held at military bases and communities across the country and at overseas installations.

This year’s theme is “Over There!  A Celebration of Army Heroes from WWI to Present Day.”

Interesting Army facts:

  • During World War II, supporting one soldier on the battlefield took one gallon of fuel per day. Today, the Army uses more than 22 gallons per day, per soldier.
  • The Army has 158 installations worldwide; more than 132,000 miles of infrastructure for electric, gas, sewer and water; and over one billion square feet of office space.
  • The Army owns more than 15 million acres of land across the United States, or about 24,000 square miles which, if the Army was a state, it would be the 42nd largest.
  • Twenty-four U.S Presidents served in the United States Army.
  • The U.S. Army is the country’s second largest employer.

(Content credit:, June 14, by Leada Gore) 

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Elon Musk Takes a Flamethrower to This Place!

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CEO of SpaceX and Tesla billionaire Elon Musk released a new device he has dubbed “Not a Flamethrower,” a promotional item for his start-up the Boring Company.

At $500 a pop, Musk grossed $10 million for the company, whose main purpose is to lower the cost of excavation and open the way for high-speed transit tunnels.

But wait … there’s more: Musk said every buyer would get a fire extinguisher, which was going for $30 extra when the sale began on Saturday! (content excerpts by:,,

Summer S’mores anyone??

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Plans for First Space Tourists to Circle Moon Delayed Again.

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Space-transportation company misses another deadline for putting humans in its Dragon capsule.

SpaceX has indicated it won’t launch a pair of space tourists to loop around the moon this year as previously announced, the latest sign that technical and production challenges are disrupting founder Elon Musk’s plans for human exploration of the solar system.

A new timetable for the flight—now postponed until at least mid-2019 and likely longer—hasn’t been released by Space Exploration Technologies Corp., the formal name of the closely held company.

Over the weekend, company spokesman James Gleeson confirmed the private moon launch has been postponed, without indicating when it might occur. “SpaceX is still planning to fly private individuals around the moon and there is growing interest from many customers,” Mr. Gleeson said in an email.

The SpaceX Dragon cargo craft attached to the Harmony module of the international space station after it arrived in December 2017. PHOTO: NASA/EPA/SHUTTERSTOCK

The delay comes amid SpaceX’s own projections of a nearly 40% drop in launches next year from as many as 28 anticipated for 2018. The decline primarily reflects a global slump in manufacturing orders and launch contracts for large commercial satellites. SpaceX successfully launched the Falcon Heavy rocket from Kennedy Space Center in Cape Canaveral, Fla..

SpaceX also is confronting industry doubts about market demand for its Falcon Heavy rocket, the company’s newest and biggest launcher, which had its maiden blastoff in February.  “People don’t think it’s serious enough yet to figure out how to use it,” Thomas Mueller, SpaceX’s chief propulsion technology officer, said in May, speaking to attendees on the sidelines of a space conference in Los Angeles. Mr. Mueller declined to elaborate or respond to questions.  (content pulled from, The Wall Street Journal, by Andy Pasztor, u

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