{"id":84284,"date":"2026-09-15T20:04:55","date_gmt":"2026-09-15T14:34:55","guid":{"rendered":"https:\/\/matribhumisamachar.com\/en\/?p=84284"},"modified":"2026-09-15T20:04:55","modified_gmt":"2026-09-15T14:34:55","slug":"single-shot-quantum-breakthrough-how-bengaluru-scientists-are-solving-decoherence-in-quantum-computing","status":"publish","type":"post","link":"https:\/\/new.matribhumisamachar.com\/en\/2026\/09\/15\/single-shot-quantum-breakthrough-how-bengaluru-scientists-are-solving-decoherence-in-quantum-computing\/","title":{"rendered":"Single-Shot Quantum Breakthrough: How Bengaluru Scientists Are Solving Decoherence in Quantum Computing"},"content":{"rendered":"<div id=\"model-response-message-contentr_952282f30060e096\" class=\"markdown markdown-main-panel md-content enable-luminous-fast-follows enable-updated-hr-color tutor-markdown-rendering\" dir=\"ltr\" aria-busy=\"false\" aria-live=\"polite\">\n<div style=\"text-align: justify;\"><strong>Bengluru. 15 September 2026<\/strong><\/div>\n<div><\/div>\n<div style=\"text-align: justify;\">Researchers at the Raman Research Institute (RRI) in Bengaluru have reported a major breakthrough in addressing one of quantum computing\u2019s most persistent technical barriers: <b data-path-to-node=\"7\" data-index-in-node=\"175\">quantum decoherence<\/b>.<\/div>\n<div><\/div>\n<div style=\"text-align: justify;\">The research, led by Prof. Urbasi Sinha at RRI\u2019s Quantum Information and Computing (QuIC) laboratory, introduces a precise, timing-based technique designed to control quantum systems without relying on hardware-intensive, continuous corrective operations. By targeting specific evolution windows, the single-shot approach successfully delays entanglement loss and counters the phenomenon known as &#8220;entanglement sudden death.&#8221;<\/div>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"10\">Understanding Decoherence: The Achilles&#8217; Heel of Quantum Computers<\/h2>\n<div style=\"text-align: justify;\">Quantum systems derive their processing power from two primary phenomena:<\/div>\n<ul style=\"text-align: justify;\" data-path-to-node=\"12\">\n<li>\n<div><b data-path-to-node=\"12,0,0\" data-index-in-node=\"0\">Superposition:<\/b> Allowing qubits to exist in multiple states simultaneously.<\/div>\n<\/li>\n<li>\n<div><b data-path-to-node=\"12,1,0\" data-index-in-node=\"0\">Entanglement:<\/b> Interlinking the quantum states of separate particles regardless of distance.<\/div>\n<\/li>\n<\/ul>\n<div class=\"code-block ng-tns-c3243601800-52 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" style=\"text-align: justify;\" data-hveid=\"0\" data-ved=\"0CAAQhtANahgKEwjd4drM3fCWAxUAAAAAHQAAAAAQ4gI\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3243601800-52\">\n<div class=\"animated-opacity ng-tns-c3243601800-52\">\n<pre class=\"ng-tns-c3243601800-52\"><code class=\"code-container formatted ng-tns-c3243601800-52 no-decoration-radius\" role=\"text\" data-test-id=\"code-content\">+-----------------------------------------------------------------------+\n|                       ENVIRONMENTAL NOISE                             |\n|             (Thermal fluctuations, electromagnetic interference)       |\n+-----------------------------------------------------------------------+\n                                   |\n                                   v\n+-----------------------------------------------------------------------+\n|                         DECOHERENCE                                   |\n|       (Fragile quantum states collapse before task completion)         |\n+-----------------------------------------------------------------------+\n                                   |\n                                   v\n+-----------------------------------------------------------------------+\n|                    ENTANGLEMENT SUDDEN DEATH                          |\n|    (Abrupt loss of useful quantum correlation across system qubits)    |\n+-----------------------------------------------------------------------+\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"text-align: justify;\">Traditional error-mitigation methods require constant interventions and complex code execution, demanding massive hardware and computational overhead.<\/div>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"16\">The Single-Shot Timing Approach: Time as a Control Parameter<\/h2>\n<div style=\"text-align: justify;\">The QuIC laboratory\u2019s strategy shifts the paradigm from continuous intervention to high-precision timing:<\/div>\n<ol style=\"text-align: justify;\" start=\"1\" data-path-to-node=\"18\">\n<li>\n<div><b data-path-to-node=\"18,0,0\" data-index-in-node=\"0\">Evolution Identification:<\/b> Researchers track the dynamic evolution of the entangled state.<\/div>\n<\/li>\n<li>\n<div><b data-path-to-node=\"18,1,0\" data-index-in-node=\"0\">Optimal Window Selection:<\/b> A specific favorable point in the system&#8217;s natural progression is identified.<\/div>\n<\/li>\n<li>\n<div><b data-path-to-node=\"18,2,0\" data-index-in-node=\"0\">Single Operation Execution:<\/b> A single intervention is applied precisely at that moment to extend entanglement lifetime.<\/div>\n<\/li>\n<\/ol>\n<blockquote data-path-to-node=\"19\">\n<div><i data-path-to-node=\"19,0\" data-index-in-node=\"0\">&#8220;The research does not replace quantum error correction or eliminate decoherence entirely. Instead, it provides a crucial addition to the quantum control toolkit by extending the operational window of fragile quantum states.&#8221;<\/i><\/div>\n<\/blockquote>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"21\">How the RRI Technique Compares to Conventional Quantum Control<\/h2>\n<table data-path-to-node=\"22\">\n<thead>\n<tr>\n<td><strong>Parameter<\/strong><\/td>\n<td><strong>Conventional Error Correction<\/strong><\/td>\n<td><strong>RRI Single-Shot Control<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><span data-path-to-node=\"22,1,0,0\"><b data-path-to-node=\"22,1,0,0\" data-index-in-node=\"0\">Control Mechanism<\/b><\/span><\/td>\n<td><span data-path-to-node=\"22,1,1,0\">Continuous active monitoring &amp; feedback<\/span><\/td>\n<td><span data-path-to-node=\"22,1,2,0\">Single operation applied at calculated time<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"22,2,0,0\"><b data-path-to-node=\"22,2,0,0\" data-index-in-node=\"0\">Hardware Overhead<\/b><\/span><\/td>\n<td><span data-path-to-node=\"22,2,1,0\">High (requires significant auxiliary physical qubits)<\/span><\/td>\n<td><span data-path-to-node=\"22,2,2,0\">Minimal (utilizes internal system timing dynamics)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"22,3,0,0\"><b data-path-to-node=\"22,3,0,0\" data-index-in-node=\"0\">Primary Goal<\/b><\/span><\/td>\n<td><span data-path-to-node=\"22,3,1,0\">Real-time active error detection &amp; correction<\/span><\/td>\n<td><span data-path-to-node=\"22,3,2,0\">Delaying decay onset &amp; preventing sudden death<\/span><\/td>\n<\/tr>\n<tr>\n<td><span data-path-to-node=\"22,4,0,0\"><b data-path-to-node=\"22,4,0,0\" data-index-in-node=\"0\">System Integration<\/b><\/span><\/td>\n<td><span data-path-to-node=\"22,4,1,0\">Core structural requirement<\/span><\/td>\n<td><span data-path-to-node=\"22,4,2,0\">Complementary layer in the technology stack<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"24\">Bengaluru\u2019s Role in India\u2019s National Quantum Mission (NQM)<\/h2>\n<div style=\"text-align: justify;\">This breakthrough arrives as India accelerates implementation of the <b data-path-to-node=\"25\" data-index-in-node=\"69\">National Quantum Mission (NQM)<\/b>, which carries an approved outlay of <b data-path-to-node=\"25\" data-index-in-node=\"137\">\u20b96,003.65 crore<\/b> spanning 2023\u201324 through 2030\u201331.<\/div>\n<div class=\"code-block ng-tns-c3243601800-53 ng-animate-disabled ng-trigger ng-trigger-codeBlockRevealAnimation\" style=\"text-align: justify;\" data-hveid=\"0\" data-ved=\"0CAAQhtANahgKEwjd4drM3fCWAxUAAAAAHQAAAAAQ5QI\">\n<div class=\"formatted-code-block-internal-container ng-tns-c3243601800-53\">\n<div class=\"animated-opacity ng-tns-c3243601800-53\">\n<pre class=\"ng-tns-c3243601800-53\"><code class=\"code-container formatted ng-tns-c3243601800-53 no-decoration-radius\" role=\"text\" data-test-id=\"code-content\">+-----------------------------------------------------------------------+\n|                 NATIONAL QUANTUM MISSION (NQM)                        |\n|                     Total Outlay: \u20b96,003.65 Cr                        |\n+-----------------------------------------------------------------------+\n                                   |\n         +-------------------------+-------------------------+\n         |                                                   |\n         v                                                   v\n+-----------------------------------+               +-----------------------------------+\n|    FABRICATION INFRASTRUCTURE     |               |     THEMATIC HUB LEADERSHIP       |\n|            (\u20b9720 Crore)           |               |       (IISc Bengaluru Lead)       |\n| IISc Bengaluru, IIT Bombay,       |               | Directing national development of |\n| IIT Kanpur, IIT Delhi             |               | 50-1,000 physical qubit systems   |\n+-----------------------------------+               +-----------------------------------+\n<\/code><\/pre>\n<\/div>\n<\/div>\n<\/div>\n<div style=\"text-align: justify;\">Bengaluru continues to serve as the nation&#8217;s primary quantum hub, supported by the <b data-path-to-node=\"27\" data-index-in-node=\"83\">Foundation for Quantum Computing Innovation (FQCI)<\/b> established at IISc Bengaluru to bridge research, hardware fabrication, and deep-tech startup deployment.<\/div>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"32\">Related Coverage from Matribhumi Samachar<\/h2>\n<div style=\"text-align: justify;\">For further insights into India&#8217;s quantum ecosystem and deep-tech infrastructure, explore our coverage:<\/div>\n<ul style=\"text-align: justify;\" data-path-to-node=\"34\">\n<li>\n<div>Read our analysis on how India is advancing hardware capabilities under the National Quantum Mission: <a class=\"ng-star-inserted\" href=\"https:\/\/new.matribhumisamachar.com\/en\/2026\/06\/15\/beyond-ai-sovereignty-how-india-is-engineering-the-next-quantum-leap\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjd4drM3fCWAxUAAAAAHQAAAAAQ5gI\">Beyond AI Sovereignty: How India is Engineering the Next Quantum Leap<\/a>.<\/div>\n<\/li>\n<li>\n<div><span class=\"citation-123\">Explore state-level deep-tech infrastructure and research funding models: <\/span><a class=\"ng-star-inserted\" href=\"https:\/\/new.matribhumisamachar.com\/en\/2026\/04\/18\/uttar-pradesh-startup-revolution-2026-new-u-hubs-and-%E2%82%B91000-crore-fund-to-fuel-10000-startups\/\" target=\"_blank\" rel=\"noopener\" data-hveid=\"0\" data-ved=\"0CAAQ_4QMahgKEwjd4drM3fCWAxUAAAAAHQAAAAAQ5wI\"><span class=\"citation-123\">UP Startup Policy 2026: Financial Grants, U-Hub Infrastructure, and CoEs<\/span><\/a><span class=\"citation-123 citation-end-123\">.<\/span><\/div>\n<\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\" data-path-to-node=\"36\">Frequently Asked Questions (FAQ)<\/h2>\n<h3 style=\"text-align: justify;\" data-path-to-node=\"37\">What is quantum decoherence?<\/h3>\n<div style=\"text-align: justify;\">Quantum decoherence is the process where a quantum system loses its quantum properties (such as superposition and entanglement) due to interactions with the surrounding environment, turning quantum information into classical noise.<\/div>\n<h3 style=\"text-align: justify;\" data-path-to-node=\"39\">Who led the RRI research on quantum timing control?<\/h3>\n<div style=\"text-align: justify;\">The research was conducted at the Quantum Information and Computing (QuIC) laboratory at the Raman Research Institute (RRI) in Bengaluru, led by Prof. Urbasi Sinha.<\/div>\n<h3 style=\"text-align: justify;\" data-path-to-node=\"41\">Does the single-shot technique eliminate quantum errors completely?<\/h3>\n<div style=\"text-align: justify;\">No. The technique is a proof-of-concept tool designed to delay entanglement loss and prevent entanglement sudden death. It is intended to complement, rather than replace, existing quantum error correction techniques and hardware improvements.<\/div>\n<h3 style=\"text-align: justify;\" data-path-to-node=\"43\">What is the budget for India&#8217;s National Quantum Mission?<\/h3>\n<div style=\"text-align: justify;\">The National Quantum Mission (NQM) has an approved total outlay of \u20b96,003.65 crore for the period covering 2023\u201324 to 2030\u201331.<\/div>\n<div><\/div>\n<div style=\"text-align: justify;\"><b data-path-to-node=\"46\" data-index-in-node=\"0\">Disclaimer:<\/b> <i data-path-to-node=\"46\" data-index-in-node=\"12\">This article is published for informational and educational purposes based on scientific research press disclosures from the Raman Research Institute (RRI) and public announcements regarding India&#8217;s National Quantum Mission. Technical metrics and timelines represent current proof-of-concept stages as reported by the institution.<\/i><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Bengluru. 15 September 2026 Researchers at the Raman Research Institute (RRI) in Bengaluru have reported a major breakthrough in addressing one of quantum computing\u2019s most persistent technical barriers: quantum decoherence. The research, led by Prof. Urbasi Sinha at RRI\u2019s Quantum Information and Computing (QuIC) laboratory, introduces a precise, timing-based technique designed to control quantum systems [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":84285,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[52893],"tags":[84644,84645,84646,84647,84648],"class_list":["post-84284","post","type-post","status-publish","format-standard","has-post-thumbnail","category-regional","tag-iisc-quantum-technology-thematic-hub","tag-india-quantum-computing-breakthrough-2026","tag-national-quantum-mission-bengaluru-hub","tag-quantum-entanglement-sudden-death-solution","tag-raman-research-institute-single-shot-control-technique"],"_links":{"self":[{"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/posts\/84284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/users\/12"}],"replies":[{"embeddable":true,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/comments?post=84284"}],"version-history":[{"count":0,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/posts\/84284\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/media\/84285"}],"wp:attachment":[{"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/media?parent=84284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/categories?post=84284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/new.matribhumisamachar.com\/en\/wp-json\/wp\/v2\/tags?post=84284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}