SAN FRANCISCO, June 2 (Reuters) - Quantum computing firm

Infleqtion said on Monday it has raised $100 million in venture

capital and paired with government services contractor Science

Applications International Corp ( SAIC ) to pursue defense

deals.

Quantum computing holds the promise of solving problems in

biology, chemistry and physics that classical computers would

take thousands of years to solve. It is drawing interest - and

hundreds of millions of dollars in funding - from technology

companies such as Microsoft and Alphabet's Google, as well as

dozens of startups.

Most quantum computers use chips that must be kept at extremely

cold temperatures in cryogenic coolers, making them expensive.

Boulder, Colorado-based Infleqtion takes a different approach by

beaming lasers at rubidium atoms suspended in a vacuum chamber,

a process Infleqtion says lets its computers operate at room

temperature.

Infleqtion plans to have a modest quantum computer by 2028,

but in the meantime is using its technology for other

applications, such as providing extremely precise electronic

timing signals that can be used by military equipment in

conflict zones where GPS signals are jammed.

Infleqtion CEO Matt Kinsella told Reuters on Friday that the

company generated nearly $30 million in revenue last year.

As Infleqtion improves its core quantum technology for timing

devices, that work "feeds directly into the (research and

development) efforts for the computer," Kinsella said.

Infleqtion and the government contractor will look for other

applications for Infleqtion's technology, which is the size of

about three pizza boxes but expected to shrink dramatically over

the next several years. Michael Hauser, vice president and

managing partner of SAIC Ventures, said the technology has the

potential to replace multiple antennas on military facilities.

"You get these antenna farms, and they jam each other. Well, if

you've got this new form factor of ... antenna, maybe you don't

jam yourself anymore," Hauser told Reuters on Friday.

Investors in the current round were Glynn Capital, Morgan

Stanley's Counterpoint Global, S32, SAIC and others.