The Dutchwoman, who won the World Player of the Year prize, external in February, added: “It is always an advantage if you play at home. The crowds will be with you in the stadium.
“But London is not far from home for us, so I am sure there will be lots of orange in the stadium when we play.”
Great Britain’s women endured a disappointing 2008 Olympics, external, finishing sixth, but this year they drew 2-2 with the Netherlands in the Champions Trophy group stage on the way to reaching the final.
Paumen said: “We were 2-0 ahead at half-time and they got back into that game, which I was impressed by. They are physically very strong and never give up.”
Britain eventually lost 1-0 against Argentina in the final, while the Netherlands won the third-place play-off against Germany having lost their semi-final against Argentina on penalties.
Paumen said: “A lot of the teams that you have seen in the Champions Trophy can challenge for gold at London 2012. I think that all of the teams who played in that competition have a chance.
“There are some favourites – like Argentina, Great Britain and ourselves. Also, Germany and Australia. But the top of the world is getting bigger. It’s good for the sport.”
Asked if her team are under pressure as defending champions, she said: “Yes we are. Teams will want to beat us. Everyone knows that we are number one in the world.”