Atom Chip Bec Interferometer Measurement Of The Acceleration Of Free Fall Online Read

Minggu, 22 Desember 2019

Atom Chip Bec Interferometer Measurement Of The Acceleration Of Free Fall Online Read

All atom optical operations including detection take place inside a volume of a one centimeter cube. We show that a bose einstein condensate bec interferometer on an atom chip is capable of making an absolute force measurement.

Measuring The Acceleration Of Free Fall With An Atom Chip

The mach zehnder interferometer starts with a beam splitter pulse that gives a velocity kick with 50 probability resulting in an equal superposition of two atomic momentum states see figure 1 b.

Atom Chip Bec Interferometer Measurement Of The Acceleration Of Free Fall Online Read. In order to investigate new geometries we studied symmetric double bragg diffraction as well as the coherent acceleration of atoms with bloch oscillations. Two interferometer arms are implemented by splitting a bec into two symmetric wells using radio frequency rf adiabatic potentials. Two interferometer arms are implemented by splitting a bec into two symmetric wells using radio frequency rf adiabatic potentials.

We implement two interferometer arms by splitting a bec into two symmetric wells using radio frequency rf adiabatic potentials. The wafer is cleaned using the standard radio corporation of america procedures and fuming nitric acid. A bose einstein condensate bec interferometer on an atom chip is capable of making an absolute force measurement.

When the atoms are released they fall through a 1 cm long region in which the interferometry is performed. The author demonstrates this by making an absolute measurement of the gravitational acceleration g. After a free evolution time of t the momentum states are inversed by a mirror pulse.

In the light of all these studies we have fabricated our bec interferometer chip using a thick evaporated gold layer patterned by ion beam milling. We implement two interferometer arms by splitting a bec into two symmetric wells using radio frequency rf adiabatic potentials. We use a 4 inch p doped 1 0 0 silicon wafer with a resistivity of to produce 16 atom chips.

The teams atom chip oriented horizontally inside a small evacuated container traps and condenses 10000 atoms creating a bec within 15 seconds at a point just below the chips surface. Atom chip for bec interferometry 3 surface serves as a mirror that re ects some of the laser cooling light allowing the mot to be formed close to the chip. A compact gravimeter based on an atom chip.

We demonstrate this by making an absolute measurement of the gravitational acceleration g. We demonstrate this by making an absolute measurement of the gravitational acceleration g. The author demonstrates this by making an absolute measurement of the gravitational acceleration g.

The atoms are then passed to the magnetic trap where the cloud is further cooled by forced evaporation using an rf eld to eject the most energetic atoms. Using the chip as a retroreflector we have realized the first atom chip based gravimeter. We show that a bose einstein condensate bec interferometer on an atom chip is capable of making an absolute force measurement.

A bose einstein condensate bec interferometer on an atom chip is capable of making an absolute force measurement. Atom chip for bec interferometry article pdf available in journal of physics b atomic molecular and optical physics 435 october 2009 with 65 reads how we measure reads.

Figure 2 From Atom Chip Fountain Gravimeter Semantic Scholar