feat: add Karthik Soma's profile to the people section

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: karthiks1701

src/people/karthik-soma.md

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+---
+name: Karthik Soma
+role: phd
+title: PhD Student
+short_bio: PhD student at Mila and Polytechnique Montréal working on swarm intelligence, collective decision-making, and multi-agent reinforcement learning.
+supervisor: Giovanni Beltrame
+tags: [Swarm Robotics, Multi-Agent Reinforcement Learning, Collective Intelligence]
+email: karthik.soma@etud.polymtl.ca
+github: karthiks1701
+linkedin: https://www.linkedin.com/in/karthik-soma-b92166162/
+scholar: eJ5jLXoAAAAJ
+---
+
+Karthik Soma is a PhD student at Polytechnique Montréal and Mila Quebec AI Institute, supervised by Prof. Giovanni Beltrame. He holds a B.Tech in Instrument and Control Engineering from the National Institute of Technology, Tiruchirappalli (GPA: 8.98/10.00).
+
+His research spans swarm intelligence, collective decision-making, and multi-agent reinforcement learning. He has published work at top robotics and AI venues including ICRA, TMLR, MRS, DARS, and ECAI.
+
+## Current Work
+
+Karthik's doctoral work focuses on collective intelligence in robot swarms — exploring how large groups of simple robots can make decisions, share resources, and navigate collaboratively. Current projects include:
+
+- **Swarm Biotactics**: Developing collective strategies for centroid estimation, flocking, and navigation using bio-hybrid swarms.
+- **Multi-Agent Reinforcement Learning**: Benchmarking MARL algorithms in complex coordination tasks with heterogeneous agents, in collaboration with Thales Digital Solutions Inc.
+- **The Hive Mind**: Investigating how swarm behavior emerges from a single RL agent trained across a population of robots.
+
+## Contact
+
+Reach Karthik at [karthik.soma@etud.polymtl.ca](mailto:karthik.soma@etud.polymtl.ca) or on [LinkedIn](https://www.linkedin.com/in/karthik-soma-b92166162/).