# Phase response of atom interferometers based on sequential Bragg diffractions

## TL;DR

This paper develops an analytical model for the phase response of atom interferometers employing Large Momentum Transfer techniques with sequential Bragg diffractions, highlighting how pulse sequences influence sensitivity and noise mitigation.

## Contribution

It introduces a new analytical framework for understanding the phase response of LMT atom interferometers with sequential Bragg pulses, including noise mitigation strategies.

## Key findings

- The sensitivity function can be analytically derived for LMT interferometers.
- Pulse sequences can be engineered to reduce phase noise sensitivity.
- The model accounts for pulse duration effects on acceleration sensitivity.

## Abstract

Large Momentum Transfer (LMT) beam splitters are implemented in atom interferometers to increase their sensitivity. However, LMT-interferometer requires additional light-pulses that modify the response function of the atom interferometer. In this paper, we develop an analytical model for the sensitivity function of the LMT-interferometers using sequential accelerating light pulses. We use the sensitivity function to calculate the acceleration sensitivity taking into account the pulse duration. In addition, the sensitivity to laser phase uctuations is calculated, and we show that the pulse sequence can be engineered to mitigate the phase noise sensitivity.