The Branch Interferometer Explained: Could We Really Detect Parallel Universes? First Beacon is a hard science-fiction thriller by debut author Vivek Parate, centered on physicist Ved Sharma, who opens a dimensional breach he cannot close in the fictional city of Shurgadh. Self-published through Notion Press and distributed on Amazon and Flipkart, it's the first book in a planned series, with a sequel currently in progress. Somewhere in the pages of speculative fiction, a machine hums to life in a basement lab. Its inventor — the fictional creation dreamed up by author Ajay Nandan calls it a "branch interferometer." Flip the switch, and it doesn't just measure light. It listens for the echo of a universe that split away from our own a fraction of a second ago. It's a great premise for a story. But is there any real physics hiding underneath it? As it turns out, yes — quite a lot. The branch interferometer borrows its DNA from three genuinely existing pillars of modern physics: interferometry, Bose-Einstein condensates (BECs), and the Many-Worlds Interpretation (MWI) of quantum mechanics. None of these, on their own or combined, currently lets anyone detect a parallel universe. But understanding why they're used in the story — and where they run into hard limits in reality — is one of the more fascinating rabbit holes in popular physics. To know more about the first beacon @ https://dl.flipkart.com/dl/first-beacon/p/itm7ab1844128e6a?pid=9798903927265&lid=LSTBOK9798903927265VE7BNO&marketplace=FLIPKART&q=first+beacon+book&store=bks/wbi/hax&srno=s_1_1&otracker=AS_QueryStore_OrganicAutoSuggest_1_12_na_na_na&otracker1=AS_QueryStore_OrganicAutoSuggest_1_12_na_na_na&fm=organic&iid=6a8dfc47-2424-4cbb-a474-9a35b02890ca.9798903927265.SEARCH&ppt=hp&ppn=homepage&ssid=wyo4epnxbk0000001783751149342&qH=54edc87c91dcf324&ov_redirect=true&ov_redirect=true&_refId=&_appId=CL