Statistical Computing

Title : Design of a Quantum Photonic Full Adder Gate based on an 8-mode Integrated Optical Circuit Date: Feb 28 2026 Noon - 14:00 EST Abstract: Multiport interferometers designed using the Clements decomposition algorithm can be used to implement compact quantum-photonic full-adder (FA) gates on photonic integrated circuits (PICs). By expressing each element of the FA gate matrix in terms of the permanent of a non-unitary matrix, enabled through Boson sampling, the required number of MZIs in the gate can be further reduced. In this presentation, we will discuss the design of an FA gate modeled as a four-photon scattering process on an eight-mode integrated optical circuit, where the permanents of submatrices determine the output probabilities. Simulation results demonstrate a fidelity of 1 and a success probability of 2.22 × 10⁻⁴ for the FA gate. We will also examine the impact of phase-shifter and attenuator variations on fidelity and success probability using Ansys Q-Interconnect software. Finally, we will compare the performance of the proposed FA gate with a benchmark Toffoli gate designed using the same approach. Speaker: Shafiqul Hai received the B.Sc. degree in Electrical and Electronic Engineering from the Bangladesh University of Engineering and Technology (BUET), Dhaka, Bangladesh, in 2007, and the M.Eng. (Thesis) and Ph.D. degrees in Electrical Engineering from McGill University, Montreal, QC, Canada, in 2011 and 2016, respectively. He is currently an Assistant Professor in the Department of Electrical and Computer Engineering at Lakehead University. His research interests include the modeling and characterization of compact nanophotonic devices and components for next-generation optical fiber and RF communication systems, as well as quantum computing on photonic integrated circuits. He is the author or coauthor of more than 12 peer-reviewed journal papers and 15 conference publications. Moderators: Dr. Pawel Gora, CEO of Quantum AI Foundation ([https://www.qaif.org/](https://www.qaif.org/)) , Dr. Sebastian Zajac , member of QPoland ([https://qworld.net/qpoland/](https://qworld.net/qpoland/)) This is an online event. Zoom registration form will be emailed to registrant and posted on the event forum by Feb 28 2026 11:00 am EST.

Friends Join Us for a Transformative Two-Day Workshop on Authentic Relating on Feb 28th and March 1st. ART Level 1! Authentic Relating is about creating deeper, more meaningful connections by being open, honest, and present with others. In this workshop, you will learn practical tools to communicate more effectively, understand and express your true self, and cultivate empathy and trust in your relationships. **What to Expect:** * **Interactive Exercises:** Engage in a variety of activities designed to help you practice authentic relating principles. * **Group Discussions:** Share experiences and insights in a safe and supportive environment. * **Personal Growth:** Discover new ways to connect with yourself and others on a deeper level. Please RSVP to secure your spot, as space is limited. To learn more please click the link below. You can register online by going here: [https://authenticrelating.co/product/level-1-washington-dc-feb2026/](https://authenticrelating.co/product/level-1-washington-dc-feb2026/) *Enroll before January 28th and get 100 dollars off.*

This event is for women only. We will meet for coffee and a bite to eat at a local cafe.

# **TRUST THE COMPUTER! Paranoia, perfect edition** one-shot RPG **Sign-Up**: [https://www.3gearstudios.com/trust-the-computer-paranoia-perfect-edition.html](https://www.3gearstudios.com/trust-the-computer-paranoia-perfect-edition.html) **\*\* Use the link above to sign-up to ensure your spot\*\*** You are a Troubleshooter! Congratulations! As a Troubleshooter, you are a member of Alpha Complex’s most expendable elite force. Tasked with finding trouble and shooting it. You’ll save Alpha Complex from its greatest threat, unless you accidentally become Alpha Complex’s greatest threat. The style of Paranoia is said to be like a mix of George Orwell's "1984" and Douglas Adam's "Hitchhiker's Guide to the Galaxy". In this one shot, Players will create new characters and go on a mission. This is a D6 system, where tasks are checked by rolling a number of dice equal to a stat + skill, along with any other modifiers. This will be a "Classic" style game, accusations of treason should have the appropriate paperwork and evidence. Stay Alert! Trust No One! Keep Your Laser Handy! * **Dates:** Saturday, February 28 * **Time** : 6:00pm - 10:00 PM * **GM**: Lucas P. (He/Him) * **Spots**: 6 * **Characters**: New * **Rating**: T * **Cost**: $10 (Free for Gold Tier Patreons) * **Place**: In Person at 3 Gear Games(25 C Street, Laurel MD 20707) --**Refund Policy**-- Refunds will be issued should we have to cancel this event, and are unable to reschedule it. They will not be issued for no-shows. --**Game Room Code Of Conduct**--[https://www.3gearstudios.com/service/code-of-conduct/](https://www.3gearstudios.com/service/code-of-conduct/?fbclid=IwAR054LDLzN5OeBImBfQpND1a_83AGAxPeFHwMO303UD3Z7rggbPn-TRYH64) Email questions to 3geargames@gmail.com

**Social Sips & Bite and El Ray - ONE NIGHT. BIG ENERGY. ALL YOU**. This is not a regular night out. This is a celebration of the people who make this group unforgettable. Social Sips & Bites and El Ray are joining forces to throw a high-energy, feel-good, can’t-miss night dedicated to YOU. Surprise drinks El Ray has surprise drinks for Social Sips & Bites members as a thank-you. Come early and enjoy what they have lined up. NOW FOR THE FUN PART… THE TALENT SHOW Got a hidden talent? Or one you’ve been waiting to unleash? **This is your stage.** * Sing * Dance * Stand-up comedy * Storytelling * Spoken word or poetry * Magic tricks * Impressions or characters * Group performances * Anything creative, fun, or surprising. No pressure. No judgment. Just good vibes, loud cheers, and a room full of friends rooting you on. WE VOTE. YOU WIN. The crowd will vote for the Best Talent of the Night, expect bragging rights, applause, and serious hype. Whether you’re performing or cheering from the sidelines, this night is about community, creativity, and celebrating the people who show up and make this group what it is. ✨ Big energy ✨ Big appreciation ✨ Big fun Come shine. Come support. Come celebrate. This is Social Sips & Bites at its best.

Join the Ski and Sports Club of Washington DC (SCWDC) on the slopes this season. Show your interest or solicit roommates here on Meetup. **However, [TRIP REGISTRATION IS ON THE SCWDC WEBSITE](https://scwdc.wildapricot.org/Ski-Flight-Trips)**. Trips are open to paid SCWDC members ([see all club benefits on the SCWDC website](https://scwdc.wildapricot.org/membership)), or Blue Ridge Ski Council (BRSC) members. **ASK QUESTIONS directly to the TRIP LEAD on ea SCWDC TRIP page** Trip Prices Include: -**Planning and logistics handled by Trip Leaders** -All trips supported by experienced committee members and club leaders -Club founded in 1936 **-Group roundtrip air travel & ground transportation to the slopes** -Grocery stop, may be included -Ground transportation only (book your own flights), may be available **-All posted prices, Double Occupancy** -Specify preferred roommate during registration, if identified -Trip Lead assigns a same gender roommate if none specified -Private rooms available with the additional single supplement (SS) price **-Pre-Trip DMV social meet/greet, may be included** **-During trip daily social meet/greet, may be included** **-Discount lift tickets, at additional costs, from third-parties may be included**

[More Than a Flower | National Museum of African American History and Culture](https://nmaahc.si.edu/explore/exhibitions/more-flower) [https://nmaahc.si.edu/explore/exhibitions/more-flower](https://nmaahc.si.edu/explore/exhibitions/more-flower) **More Than a Flower Exhibit \| National Museum of African American History and Culture** ***More than a Flower* shares the fresh and fragrant beauty of live orchids and connects stories, scholarship, and art to this extraordinary species.** **I have 4 tickets, and Sri has 9 tickets for 1:30 PM on Saturday, February 28th.** ***SO, there are 13 tickets, and I limited the number of attendees to 13.*** ***Feel free to go at another time that works for you. The exhibit will be there until April 26.*** Bring: Water, fully charged batteries, empty cards, and comfortable shoes Share only your very best, most interesting shots after the field trip, and keep it down to between 5 and 10 photos. By sending in an RSVP and joining this meetup event hosted by the Virginia Beltway Photography Meetup, I am also agreeing to the terms of the following release and waiver of liability, which shall be binding on my heirs, executors, administrators, successors, and assigns. In consideration of my (and my child’s) participation in the Virginia Beltway Photography Meetup, I do hereby release, discharge, and hold harmless the Organizer, its members, officers, directors, employees and the leader(s) of this event from any and all liability by reason of any damage, loss, expenses, or injury arising from my (and my child’s) participation in this event, including that caused solely or in part by the fault of any and all of the above-named parties.

Come out to Bub and Pop's in NoMA for great standup and food/drink! We've got an awesome lineup to keep you laughing! This is a ticketed event, and tickets are available via Eventbrite (see link below) snag em' while you can! [https://www.eventbrite.com/e/standup-and-sandwiches-the-return-of-hot-beef-tickets-1983591068282?aff=ebdssbdestsearch#location](https://www.eventbrite.com/e/standup-and-sandwiches-the-return-of-hot-beef-tickets-1983591068282?aff=ebdssbdestsearch#location) Don't miss out on this incredible opportunity to experience the **DMV's finest comedic talent**! Comedians have performed on TV, the DC Improv, the DC Comedy Loft, Arlington Cinema and Drafthouse, and many more clubs and venues! So grab your friends, reserve your seats, and get ready for a night of non-stop laughter, great food and awesome drinks! We can't wait to see you there! This event is produced by Callback Comedy

⚠️ **IMPORTANT: You must sign up and buy a ticket here to attend:** [https://groupvibe.com/](https://groupvibe.com/) **This is a curated, small-group meetup make new friends in Washington.** Each meetup brings together 4–6 like-minded people for casual conversations over dinner. We use the Groupvibe platform to organize and ensure everyone’s a good fit. 👉 **To attend, you’ll need to complete registration via this link:** [https://groupvibe.com](https://groupvibe.com) Once you register, and **buy a ticket or become a Groupvibe member**, we’ll share the exact location and match you with your group. **Why this works:** \* Smaller groups make real conversations easier \* Matching helps avoid awkward dynamics **Note:** RSVPs here on Meetup don’t reflect total attendance. Many attendees register directly via our website. This meetup is organized by **Groupvibe**, a small team passionate about helping people form meaningful friendships offline.

Join us for our new members meet and greet coffee and conversation event! WE will have ice breaker games and Topic conversations ( no politics). This is for a fun relaxing event to get to know other people. Location: Panera Bread- Metro friendly FREE Parking on Sunday's Members only please Seating is open ( this is a non reservation event) Food and Drinks available. Grab some Coffee and Meet new friends!

This Happy Hour is devoted to professionals in the International Affairs and Development community, to grow, interact, and learn from each other. It is designed to provide a professional environment to meet other International Affairs professionals to broaden one's career. It is also for those interested in International Affairs and Development careers and are studying or intend to enter the dynamic world of global development. HOW IT WORKS : We will try to assign tables for each represented INDUSTRIES/SECTORS/SPECIALIZATIONS and will direct attendees to their respective tables accordingly. All industries are welcome! However we don't guarantee the availability of a partner in that particular field, you would like to exchange experience. PLEASE BRING YOUR SOFT/HARD COPY BUSINESS CARDS. Rules to abide : 1\. Event is 21\+ \(bring ID\)\. 2\. Be respectful to your counterparts and give them a chance to exchange with others as well\. 3\. We all specialize in one or two fields and be willing to engage others and try to accommodate as much as possible\. 4\. If you don't specialize in the other person's required discipline\, LEAVE THEM ALONE\. 5\. Rude or aggressive members are removed from the group at an organizers discretion\. 6\. This is a face\-to\-face event\. DO NOT try to arrange an online meeting\, by using the comment box or direct message\. 7\. Most of our members complained about people writing in the comment box\. Since it sends notification to all attendees\. If you have any questions\, send a message to the organizers\. Don't write in the comment box\. 8\. We have ZERO TOLERANCE for solicitation\. We don't allow anyone to run their own agenda at the Event\. If you are interested to promote/sponsor/collaborate; contact us via \(info@merevents\.com\)\. 9\. When you get there\, we greet you and take you to your respective group\. 10\. Don't be shy of your specializations\. We have diplomates assigned to different countries\, who would love to learn more from your experience\. 11. ***Please be patient for the first 30 minutes, up until we form a group with your respective industry/sector.*** ***AFTER THE SOCIAL, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!*** ***N.B. : We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](http://info@merevents.com/)).***

Greetings from the capital! Every Saturday at 7:30 PM, people from all walks of life — students, diplomats, travelers, locals — gather to unwind and connect. [[[Click this whatsapp groupchat link to join](https://chat.whatsapp.com/Gf89PPYe3RMAK6Z7SGf5or)]] Our age range is mostly 20s to 30s. If you enjoy discussing culture, politics, travel, or just want to practice a new language, this group is for you. A perfect blend of diversity and dialogue, right in the heart of D.C.

We'll check out Northside Social Falls Church: 205 Park Ave, Falls Church, VA 22046 Please have a picture profile so we can recognize you in the meetup. Please only sign up if you're sure about attending this meetup, and please update your RSVP as soon as possible if you need to cancel, thank you!

Bitcoin District is a community of Bitcoiners living & working in the greater DMV metro area. Join us for a "Coffee & Bitcoin" meetup where we'll talk about what's happening in the world of Bitcoin. 👉 [RSVP on LUMA](https://luma.com/g4a1tknf) This is an easygoing, open-door gathering where anyone curious about Bitcoin can ask questions and meet the local community. No presentations, no pressure — just good coffee, good conversation, and a space to talk about what’s happening in the Bitcoin world. New to Bitcoin, actively building, or simply interested in connecting with the local community? Stop by, say hello, and spend a Saturday morning with us. Checkout the cafe's menu: [https://www.opencitycathedraldc.com/](https://www.opencitycathedraldc.com/) **Getting There:** ​🚗 Free Parking (on Saturdays) by the Cafe 🚇 30-min walk from Woodley Park-Zoo/Adams Organ **⚠️ Our events are Bitcoin focused and we generally avoid discussing other coins & tokens. Nothing discussed during this meetup is financial advice. Always do your own research.** 👉 [RSVP on LUMA](https://luma.com/g4a1tknf)

Join the inaugural meeting of the Columbus Vintage Computing Club (CVCC)! Get to know others in the vintage computing space and get hands on time with a Commodore VIC-20 and various Palm Pilot PDAs! We will use this time to get to know each other, share projects we've been working on and plan the future of the CVCC. We'll be at the Hilliard Library in Meeting Room 2A at 6:00 PM - 8:00 PM

The Humanist Monthly Program is our longest running event and still a community favorite. In the old days it used to be called "Going to HCCO" and we still like to think of it as our flagship event. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Our March speakers are Molly Gaines and Zack Parrish, co-organizers of the Secular Education Association: They will share their story of how a small group of Ohio parents grew into a national organization tracking released-time religious instruction and other church–state issues in public schools. The presentation will cover SEA’s early wins and hard lessons, what we’re seeing nationally right now, and how local advocates can play a meaningful role in protecting public education. Attendees will leave with a clearer understanding of the landscape — and practical ways to get involved. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

Christians in Tech is a community at the intersection of faith and technology. Our meetups are designed to spark meaningful conversations, promote knowledge sharing, and encourage growth—both in your career and your spiritual walk with God. Whether you're an experienced professional or just starting your tech journey, CIT welcomes you. Our Website [https://linktr.ee/citcbus](https://linktr.ee/citcbus) Sponsors and Partners * Improving (Venue Sponsor) * Bethel World Prayer Center (Fiscal Sponsor) * Fruits & Roots (Coffee Partner)

Window functions have nothing to do with the Windows operating system but provide a “window” to a result set when used in SQL queries. They are powerful, set-based methods to view data in unexpected ways. Window functions provide easy, set-based solutions to solve some common problems: * Using running totals * Performing operations in intervals * Identifying data gaps and islands * Performing aggregates without losing detail Many people are confused by window functions and do not know how to use them properly. This session will explore window functions, how they work, and how to use them. Demonstrations with several examples will solidify how window functions can simplify queries and make them more powerful.

**Google Analytics Alternatives** Is it finally time to make the switch away from Google Analytics? Two-and-a-half years ago Jason Packer asked this question at Columbus Web Analytics Wednesday. Since then: Google’s Universal Analytics has been sunset, we’ve changed our name to Columbus Data & Analytics Wednesday, and Jason has released two editions of his book “Google Analytics Alternatives”. Fresh off the release of the 2nd edition of his book, we thought it was time to re-open this conversation. While people love to complain about it, GA’s market share has remained relatively constant (at least in the United States). Why is that? You won’t find any complaints about GA4 in this talk, but rather an overview of what’s currently available in the market and how to frame your decision-making process. We’ll also be giving out some free copies of Jason’s book! So even if you’ve got a “GA4Lyfe” tattoo (no judgement), there’s free books to go with the free pizza and beer. Thanks to our 2026 sponsors: [Clarivoy](https://www.clarivoy.com), [What Box Consulting Group](https://www.whatboxconsultinggroup.com), [Conductrics](https://www.conductrics.com), and [Piwik PRO](https://piwik.pro) More info at [cbusdaw.com](https://cbusdaw.com)

**New Dojo Location!** **Draft Day Columbus** 1130 Dublin Road Columbus, OH 43215 We're going to try a new dojo location for a few weeks and see how it works Dojos are informal Python group study sessions where everyone interested in Python gathers to learn about Python, help others with Python, or just hang out. Everyone is welcome from Python beginners to experts. Bringing a laptop is encouraged (we'll have extension cords and power strips). If there's something you want to learn leave a comment on this invite so we can plan ahead. We're looking for topic suggestions and people interested in presenting at our monthly meetings. To this end we've set up a survey form at [https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc](https://docs.google.com/forms/d/15eBKF1nQQ2XS5gzD4rvhVRHMBEj7lJtHuA9wXupS3Uc)

We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.