Merul Badda Talks in Math & Physics

𝐌𝐞𝐫𝐮𝐥 𝐁𝐚𝐝𝐝𝐚 𝐓𝐚𝐥𝐤𝐬 | 𝐌𝐚𝐭𝐡 & 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 — 𝐔𝐩𝐜𝐨𝐦𝐢𝐧𝐠 𝐋𝐞𝐜𝐭𝐮𝐫𝐞

We’re back with another deep dive into early-universe physics—this time exploring how quantum mechanics might have had a say in black hole formation.

𝐓𝐢𝐭𝐥𝐞: Quantum Formation Mechanism of Primordial Black Holes

𝐒𝐩𝐞𝐚𝐤𝐞𝐫: Mariem Absar
Master’s Student, University of Chittagong

𝐃𝐚𝐭𝐞: April 23, 2026

𝐓𝐢𝐦𝐞: 5:00 PM

𝐕𝐞𝐧𝐮𝐞: Room 09A-7C, BRAC University

𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: https://forms.gle/gLNcrN6sVwC8KFxB7

𝐀𝐛𝐬𝐭𝐫𝐚𝐜𝐭
Black holes formed in the early universe are the most compelling candidates for dark matter and provide a unique probe for studying the inflationary era.Their formation is seeded by quantum fluctuations generated during cosmic inflation. The standard formation mechanism contains a semiclassical inconsistency as the gravitational collapse of those fluctuations that produces black hole is treated as a classical process. In this talk, I present a framework that closes this gap. Using the Horizon Quantum Mechanics(HQM) formalism, I derive the analytical expression that a given inflationary fluctuation collapses into primordial black hole. The result reproduces exactly the classical estimate of PBH abundance and demonstrates that quantum correction enhances the formation probability.

Open to students, researchers, and anyone interested in cosmology, quantum gravity, and the early universe.

𝐍𝐨𝐧 𝐁𝐫𝐚𝐜𝐔 𝐚𝐭𝐭𝐞𝐧𝐝𝐞𝐞𝐬 𝐚𝐫𝐞 𝐫𝐞𝐪𝐮𝐢𝐫𝐞𝐝 𝐭𝐨 𝐫𝐞𝐠𝐢𝐬𝐭𝐞𝐫 𝐭𝐡𝐫𝐨𝐮𝐠𝐡 𝐭𝐡𝐞 𝐫𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧 𝐥𝐢𝐧𝐤 𝐨𝐫 𝐐𝐑 𝐜𝐨𝐝𝐞.

Excited to see the 2026 ICTP Physics Without Frontiers – Physics for Bangladesh schedule announced!
Looking forward to an inspiring year of learning, research, and growth in physics.

Hello everyone, we are excited to announce our 2026 schedule for ICTP Physics Without Frontiers – Physics for Bangladesh! 🇧🇩✨

This year, we are bringing a rich lineup of programs covering mathematical physics, quantum mechanics, and more — along with our summer internship program.

𝐌𝐚𝐲–𝐉𝐮𝐥𝐲, 𝟐𝟎𝟐𝟔 : 𝐒𝐜𝐡𝐨𝐨𝐥 𝐨𝐧 𝐌𝐚𝐭𝐡𝐞𝐦𝐚𝐭𝐢𝐜𝐬 𝐟𝐨𝐫 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 𝟏 (Operators on Hilbert Spaces)
This school will introduce key mathematical tools essential for modern physics, with a focus on operators on Hilbert spaces — a foundational concept for quantum theory and beyond.

𝐉𝐮𝐥𝐲–𝐎𝐜𝐭𝐨𝐛𝐞𝐫, 𝟐𝟎𝟐𝟔 : 𝙎𝙪𝙢𝙢𝙚𝙧 𝙄𝙣𝙩𝙚𝙧𝙣𝙨𝙝𝙞𝙥 𝙋𝙧𝙤𝙜𝙧𝙖𝙢
Our internship program continues to provide Bangladeshi students with guided research or reading projects under the mentorship of PhD students and researchers. Participants will gain hands-on experience, build connections with the global research community, and explore advanced topics across physics and mathematics.

𝐀𝐮𝐠𝐮𝐬𝐭–𝐒𝐞𝐩𝐭𝐞𝐦𝐛𝐞𝐫, 𝟐𝟎𝟐𝟔 : 𝐒𝐜𝐡𝐨𝐨𝐥 𝐨𝐧 𝐐𝐮𝐚𝐧𝐭𝐮𝐦 𝐌𝐞𝐜𝐡𝐚𝐧𝐢𝐜𝐬 𝐚𝐧𝐝 𝐐𝐮𝐚𝐧𝐭𝐮𝐦 𝐈𝐧𝐟𝐨𝐫𝐦𝐚𝐭𝐢𝐨𝐧
This program will cover the fundamentals of quantum mechanics along with modern developments in quantum information, preparing students for both theoretical understanding and research applications.

𝐍𝐨𝐯𝐞𝐦𝐛𝐞𝐫, 𝟐𝟎𝟐𝟔 – 𝐉𝐚𝐧𝐮𝐚𝐫𝐲, 𝟐𝟎𝟐𝟕 : 𝐒𝐜𝐡𝐨𝐨𝐥 𝐨𝐧 𝐌𝐚𝐭𝐡𝐞𝐦𝐚𝐭𝐢𝐜𝐬 𝐟𝐨𝐫 𝐏𝐡𝐲𝐬𝐢𝐜𝐬 𝟐 (Basics of Differential Geometry)
Building on the first school, this course will introduce differential geometry — an essential framework for advanced topics such as general relativity and modern theoretical physics.

We look forward to another exciting year of learning, collaboration, and growth! 🚀

Stay tuned for application details and announcements.

Poster Credit: Walid Hasan

“শিক্ষার্থীদের সব সময় বলা হয়, তোমরা কিচ্ছু পারো না। অথচ ওকে উৎসাহ দেওয়া উচিত। বলা উচিত, তুমি পারবা। গণিত অলিম্পিয়াডে দেখেছি, বিশ্ববিদ‍্যালয়ে দেখেছি, আপনি যদি কোনো শিক্ষার্থীর মধ্যে আত্মবিশ্বাস তৈরি করে দেন, সে দিন দিন আরও ভালো করে।" — প্রফেসর মাহবুব মজুমদার

One of Bangladesh’s leading Bangla dailies, Prothom Alo, has published an exclusive interview with our beloved Professor Mahbub Majumdar.

Link:
https://www.prothomalo.com/lifestyle/jk6i4tof8g?fbclid=IwdGRjcAQjsMhjbGNrBCOwwGV4dG4DYWVtAjExAHNydGMGYXBwX2lkDDM1MDY4NTUzMTcyOAABHhmtChxD2qMpipujCyNj8KPFTKPVZudIWHdOKhdXGktM8FjRPJcy9n3G-uzJ_aem_M_EqEG8GZrxW1zxrvTO0oQ

অনেকে মিলে কিছু অর্জনের আনন্দও অনেক: মাহবুব মজুমদার যখন দেখি আমার কোনো ছাত্র একজন প্রতিষ্ঠিত বিজ্ঞানী হয়েছে, দারুণ সব কাজ করছে, তখন সবচেয়ে আনন্দ হয়।

𝐀 𝐓𝐫𝐢𝐛𝐮𝐭𝐞 𝐭𝐨 𝐉𝐚𝐦𝐚𝐥 𝐍𝐚𝐳𝐫𝐮𝐥 𝐈𝐬𝐥𝐚𝐦 𝐨𝐧 𝐇𝐢𝐬 𝐁𝐢𝐫𝐭𝐡𝐝𝐚𝐲

On the birth anniversary of Jamal Nazrul Islam (24 February 1939 – 2013), Merul Badda Talks pays heartfelt tribute to a pioneer of cosmology and a foundational figure in Bangladesh’s scientific journey.

Professor Islam’s contributions to general relativity, quantum field theory, and mathematical cosmology placed Bangladesh on the global scientific map. His work on the ultimate fate of the universe remains one of his most enduring intellectual legacies, influencing leading thinkers in theoretical physics. A graduate and later DSc awardee of the University of Cambridge, he combined mathematical rigor with cosmological imagination in a way few could.

Yet beyond research papers and textbooks, his greatest impact was as a mentor and institution-builder. By returning to Bangladesh and investing in its academic future, he demonstrated that scientific excellence and national commitment can coexist. Generations of physicists and mathematicians continue to carry forward the standards he set.

At Merul Badda Talks, where conversations at the intersection of mathematics and physics remain central to our mission, we remember Professor Islam not only as a towering scientist but as a symbol of intellectual courage, integrity, and vision.

His life reminds us: serious science can be done from anywhere — provided there is conviction, discipline, and curiosity.

𝐄𝐯𝐞𝐧𝐭 𝐖𝐫𝐚𝐩-𝐔𝐩 | 𝐌𝐞𝐫𝐮𝐥 𝐁𝐚𝐝𝐝𝐚 𝐓𝐚𝐥𝐤𝐬 — 𝐌𝐚𝐭𝐡 & 𝐏𝐡𝐲𝐬𝐢𝐜𝐬

We successfully concluded the postponed session on “Bosonic Free-Field Representations of Conformal Field Theories.”

The lecture, delivered by Md Abdullah Al Hasib Sifat, provided a rigorous exploration of Virasoro conformal field theory, bosonic free-field realizations, and their applications to correlation functions. The discussion of the Wess–Zumino–Witten model and current open problems in the field added both depth and contemporary relevance to the session.

The event sparked thoughtful questions and engaging discussion, reflecting the growing interest in advanced mathematical physics within our community.

After a long break, it was especially rewarding to restart our Math & Physics series with such a technically rich and intellectually stimulating talk.

Thank you to everyone who attended and contributed to the discussion. More conversations at the frontier of mathematics and physics are on the way.

Merul Badda Talks | Math & Physics — Upcoming Lecture (Rescheduled)

It’s been a while since our last session, and we’re excited to finally be back with a deep dive into advanced theoretical physics. This lecture is the postponed session from 8 February, now taking place on the updated date and time below.

Title: Bosonic Free-Field Representations of Conformal Field Theories

Speaker: Md Abdullah Al Hasib Sifat
Master’s student in Geometry & Quantum Fields,
Lomonosov Moscow State University

New Date: 24 February

New Time: 3:30 PM

Venue: 07A-5C, BRAC University

Registration: https://forms.gle/snSeVpdrZ5S9Neer7

This lecture will explore core ideas in Virasoro conformal field theory and bosonic free-field realizations, with applications to correlation functions and explicit examples such as the Wess–Zumino–Witten model. The session will also highlight current challenges and open problems in the field.

The session is open to students, researchers, and anyone interested in mathematical physics. Please register using the link or QR code provided.

We’re glad to resume our conversations at the intersection of mathematics and physics—hope to see you there.

𝑨 𝑪𝒆𝒍𝒆𝒃𝒓𝒂𝒕𝒊𝒐𝒏 𝒕𝒐 𝑹𝒆𝒎𝒆𝒎𝒃𝒆𝒓: 𝑯𝒐𝒏𝒐𝒖𝒓𝒊𝒏𝒈 𝑷𝒓𝒐𝒇𝒆𝒔𝒔𝒐𝒓 𝑴𝒂𝒉𝒃𝒖𝒃𝒖𝒍 𝑨𝒍𝒂𝒎 𝑴𝒂𝒋𝒖𝒎𝒅𝒂𝒓

On 17 February, the BRAC University Auditorium was filled with gratitude, pride, and inspiration as School of Data and Sciences hosted a special appreciation ceremony in honour of Professor Mahbubul Alam Majumdar.

The event celebrated two extraordinary recognitions: the Ekushey Padak 2026, Bangladesh’s second-highest civilian award, and the Spirit of Salam Award 2026 from the Abdus Salam International Centre for Theoretical Physics (ICTP). These honours stand as powerful acknowledgements of Professor Majumdar’s lifelong dedication to education, mathematics, and scientific development.

The evening brought together students, colleagues, mentors, and well-wishers—many of whom have been directly shaped by his guidance and leadership. Through heartfelt reflections and shared memories, we revisited the profound impact he has had on strengthening mathematics and science education in Bangladesh. From his leadership at BRAC University to his pivotal role in the Mathematics Olympiad movement, Professor Majumdar’s work has nurtured generations of young minds and elevated Bangladesh’s presence in the global mathematical community.

More than a celebration of awards, the ceremony was a tribute to a mentor whose integrity, vision, and unwavering commitment continue to inspire us. His journey reminds us that true excellence lies not only in personal achievement, but in empowering others to rise.

We are deeply grateful to everyone who joined us to make the event meaningful and memorable. It was an honour to celebrate a teacher whose contributions are a source of national pride and whose legacy will continue to shape the future of mathematics and education in Bangladesh.

Here’s to excellence, inspiration, and the enduring power of education.

𝐑𝐞𝐦𝐢𝐧𝐝𝐞𝐫 | 𝐀 𝐂𝐞𝐥𝐞𝐛𝐫𝐚𝐭𝐢𝐨𝐧 𝐨𝐟 𝐄𝐱𝐜𝐞𝐥𝐥𝐞𝐧𝐜𝐞 — 𝐏𝐫𝐨𝐟𝐞𝐬𝐬𝐨𝐫 𝐌𝐚𝐡𝐛𝐮𝐛𝐮𝐥 𝐀𝐥𝐚𝐦 𝐌𝐚𝐣𝐮𝐦𝐝𝐚𝐫

This is a reminder that our special appreciation ceremony honouring Professor Mahbubul Alam Majumdar will take place tomorrow.
We will gather to celebrate his remarkable achievements — receiving the Ekushey Padak 2026, the second-highest civilian award of Bangladesh, and the Spirit of Salam Award 2026 from the Abdus Salam International Centre for Theoretical Physics (ICTP). These honours recognize his extraordinary contributions to education, mathematics, and scientific development in Bangladesh.

Date: 17 February

Time: 4:30 PM

Venue: Auditorium, BRAC University

Registration link: https://forms.gle/vKxLAbgAPywp1sbP6

This celebration is a tribute to a mentor, educator, and nation-builder whose dedication has shaped generations of students and strengthened the foundation of mathematics and science in Bangladesh.

𝘼 𝘾𝙚𝙡𝙚𝙗𝙧𝙖𝙩𝙞𝙤𝙣 𝙤𝙛 𝙀𝙭𝙘𝙚𝙡𝙡𝙚𝙣𝙘𝙚: 𝙋𝙧𝙤𝙛𝙚𝙨𝙨𝙤𝙧 𝙈𝙖𝙝𝙗𝙪𝙗 𝙈𝙖𝙟𝙪𝙢𝙙𝙖𝙧

Merul Badda Talks warmly invites you to a special appreciation ceremony celebrating the extraordinary national and international recognition of Professor Mahbubul Alam Majumdar.

Professor Majumdar has been awarded the Ekushey Padak 2026, the second-highest civilian award in Bangladesh, in recognition of his outstanding contributions to education. He has also received the Spirit of Salam Award 2026 from the Abdus Salam International Centre for Theoretical Physics (ICTP)—an esteemed international honour presented to individuals who advance extraordinary scientific and educational development in the developing countries.

Over the years, Professor Majumdar has played a transformative role in strengthening mathematics and science education in Bangladesh. As an educator, mentor, and academic leader, he has guided generations of students through his teaching, his leadership at BRAC University, and his long-standing involvement in the country’s Mathematics Olympiad movement. His dedication to nurturing young talent, developing academic programs, and fostering a culture of rigorous scientific thinking has significantly elevated Bangladesh’s presence in both national and international mathematical communities.

This celebration is our heartfelt tribute to a mentor who has inspired, guided, and supported us since the very beginning of this initiative. His vision, integrity, and lifelong commitment to mathematics and education continue to shape generations of students in Bangladesh and beyond. We look forward to celebrating this remarkable achievement together with our audiences, well-wishers and members of the university community.

📅 Date: 17 February
🕓 Time: 4:30 PM
📍 Venue: Auditorium, BRAC University

📌 Open for all.
Everyone is warmly welcome to attend.

If you are not affiliated with BRAC University, registration is mandatory. Please confirm your participation by filling out the Google Form below.

🔗 Registration Link: https://forms.gle/vKxLAbgAPywp1sbP6

Let us come together, as students, colleagues, friends, and admirers, to honour a teacher whose achievements are a source of pride for the entire nation and an inspiration for generations to come.

We look forward to your presence.

𝐍𝐨𝐭𝐢𝐜𝐞 | 𝐌𝐞𝐫𝐮𝐥 𝐁𝐚𝐝𝐝𝐚 𝐓𝐚𝐥𝐤𝐬 — 𝐌𝐚𝐭𝐡 & 𝐏𝐡𝐲𝐬𝐢𝐜𝐬

Please note that the upcoming lecture “Bosonic Free-Field Representations of Conformal Field Theories”
scheduled for 8 February, 5:00 PM has been postponed.

Due to the upcoming election, we have decided to reschedule the session to ensure smooth participation and accessibility for everyone.

We will announce the revised date and time very soon.
Thank you for your understanding and continued interest in Merul Badda Talks.

We look forward to resuming our discussions at the intersection of mathematics and physics shortly.

𝐑𝐞𝐦𝐢𝐧𝐝𝐞𝐫 | 𝐌𝐞𝐫𝐮𝐥 𝐁𝐚𝐝𝐝𝐚 𝐓𝐚𝐥𝐤𝐬 — 𝐌𝐚𝐭𝐡 & 𝐏𝐡𝐲𝐬𝐢𝐜𝐬

After a long break, we’re finally back—and this is your reminder for our upcoming session diving straight into advanced theoretical physics.

𝐓𝐢𝐭𝐥𝐞: Bosonic Free-Field Representations of Conformal Field Theories

𝐒𝐩𝐞𝐚𝐤𝐞𝐫: Md Abdullah Al Hasib Sifat
Master’s student in Geometry & Quantum Fields,
Lomonosov Moscow State University

𝐃𝐚𝐭𝐞: 8 February

𝐓𝐢𝐦𝐞: 5:00 PM

𝐕𝐞𝐧𝐮𝐞: Room 9G-31T, BRAC University

𝐑𝐞𝐠𝐢𝐬𝐭𝐫𝐚𝐭𝐢𝐨𝐧: https://forms.gle/snSeVpdrZ5S9Neer7

The lecture will cover key ideas in Virasoro conformal field theory, bosonic free-field realizations, correlation functions, and concrete examples like the Wess–Zumino–Witten model—along with current challenges and open problems in the field.

Open to students, researchers, and anyone interested in mathematical physics.

Don’t forget to register using the link or QR code provided.

শিক্ষায় উল্লেখযোগ্য অবদান রাখার স্বীকৃতিস্বরূপ এ বছর একুশে পদক পাচ্ছেন অধ্যাপক ড. মাহবুবুল আলম মজুমদার।