Which denomination? You forget that Christianity is a very broad term to use, as there are a myriad of denominations within. I'm not even 100% on what the differences between all the denominations are. However, to believe the aspects of what most denominations will tell you is not too horrendously contradictory. If you're talking about the creation story, even many Christians are hesitant to accept it as a literal account of history, as opposed to a more poetic, figurative interpretation, and even those who do believe pretty literally, also don't believe that the original "day" was 24 hours, as we understand the concept of "hours", and wasn't so for quite awhile. Third, there are some who have re-evaluated the math and believe via biblical mathematics that the earth is at least 10,000 years older than originally derived, which while still a few billion years off from scientific estimation, is further proof that to lump it all under the umbrella "aspects of Christianity" is unfair to scientists and Christians alike. Next, you're assuming this applies to all hard scientists, which is also a broad brush to paint with. And who says a quantum physicist can't be worth his salt in the study and progression of understanding of quantum mechanics and not believe the doctrines of Christianity? If I remember correctly, one of the discoverers of the double-helix structure of DNA (I believe in this case, Francis Crick) believed that it was implantation by extra-terrestrials that caused this shape. Was he no longer worth his salt for believing in something other than billions of years theory?
Lastly, I would dare you to actually make that statement in front of the assembled Faraday Institute and see how quickly you get dismissed both in academics and in body.